Field instrumentation. Crop and Environmental Sciences Division International Rice Research Institute Los Baños, Philippines

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Field instrumentation. Crop and Environmental Sciences Division International Rice Research Institute Los Baños, Philippines"

Transcription

1 Field instrumentation Crop and Environmental Sciences Division International Rice Research Institute Los Baños, Philippines

2 Field water balance lowland rice

3 Two types of instruments Instruments to measure water inflows and outflows Instruments to characterize field water status and groundwater ( hidden water source )

4 Two simple tools to characterize water environment and aid in field water management Field water tube Groundwater tube

5 Field water tube

6 With standing water on top of the surface: read this 20 cm diameter PVC pipe Use a ruler to Measure water depth 0 15 cm Soil surface Puddled topsoil 20 cm With water below the soil surface: read this Plow pan Holes are 5 mm in diameter, and spaced 2 cm apart

7 Field water tube - installation Push tube by hand vertically Drive cylinder using mallet Check clearance from soil surface Appearance of installed PW tube Remove soil inside the tube Check and level the Top of the tube

8 Field water tube measurement Water depth = H D D = depth of field water table H = height from soil surface to the top of the tube

9 A practical indicator for water in field

10

11

12 date Field water depths Continuously flooded -250 Tuanlin Water depth [mm] Tuanlin 2000 Controlled Irrigation PhilRice 2001 date

13 Made of 5-cm diameter PVC pipe, cm long, with perforations (0.5 cm diameter) in the bottom 50 cm. Groundwater tube Installed into a bund using an auger (soil dril) of the same diameter to the required depth Should stick out about 50 cm above bund surface Use stick to measure water depth

14 Cover (used tin can) 5 cm diameter PVC pipe Bund surface 50 cm Read here Groundwater level 100 cm 200 cm Measuring device Holes are 5 mm in diameter; 2 cm apart 50 cm

15

16 Groundwater measurements Groundwater depth (cm) Day number Tuanlin, China, Groundwater depth (cm) ( 20) Groundwater depth (cm) Panicle initiation Flow ering Changle, China, 2002 Day number Harvest Dolores, Philipines, 2002

17 Soil water tension meter

18 Soil water tension in an aerobic soil 100 Soil moisture tension (kpa) Panicle initiation Flowering Harvest Day number

19 Instruments to measure water flows Rain + irrigation = evaporation + transpiration + percolation + seepage + overbund flow + d(storage) Specialized equipment: Inflows: rain gauge, flow meters Outflows: evaporation pan, percolation ring, seepage (?), surface water in channels Weather station to calculate evaporation and transpiration

20 Rainfall rain gauge The catchment funnel The measuring tube The fixing bracket The overflow tube Raingauge collector area 150 to 200 cm 2 30 cm to 1 m above the ground

21 Irrigation Flow meter in pressure pipes

22 Irrigation Box weir for surface water

23 Irrigation/drainage Simple weir for surface water

24 Irrigation/drainage Flume for surface water

25 Evaporation pan Keep away from other instruments (2x ht) Level the pan Install the stilling well and the fixed point Add water until the water reaches the tip of the fixed point and can be seen as a small dot

26 Evaporation rings Soil evaporation

27 Percolation ring 20 cm in diameter cylinder - open on both ends Covered to avoid evaporation and rainfall

28 Percolation meter - installation Push cylinder by hand vertically Drive cylinder using mallet Check clearance from soil surface Check and level percolation tube

29 Percolation meter - measurement Put a mark on the wall of the cylinder. Always measure at this point Set water levels inside = outside. Reset water level if not. Take readings after reset Take readings d i and d f from water surface to the top of tube. Compute P = d i -d f After each reading, cover the cylinder to prevent other losses (rain, evaporation)

30 Large percolation ring in field

31 Rain + irrigation = evaporation + transpiration + percolation + seepage + overbund flow + d(storage) As surface flow in drain As rest term of balance

32 Weather station (o.a., calculate ET) Temperature Humidity Evaporation pan Rain gauge Sunshine meter Radiometer Wind speed (missing)

A simple mechanical device for the measurement of discharge in a tubewell

A simple mechanical device for the measurement of discharge in a tubewell Journal of Engineering and Technology Research Vol. 2(6), pp. 111-117, June 2010 Available online at http://www.academicjournals.org/jetr ISSN 2006-9790 2010 Academic Journals Full Length Research Paper

More information

WATER REQUIREMENTS FOR GRAPE VINES. Andrew Teubes Viticultural Consultant

WATER REQUIREMENTS FOR GRAPE VINES. Andrew Teubes Viticultural Consultant WATER REQUIREMENTS FOR GRAPE VINES Andrew Teubes Viticultural Consultant Water requirements Most important principles are: Know the symptoms on the vine of water stress Know the physiological stages when

More information

Preventing water damage in the basement

Preventing water damage in the basement Preventing water damage in the basement Thousands of home insurance claims are filed every year. Some losses are major, others aren t, but they re always an inconvenience and usually avoidable! As prevention

More information

Core 1 Core 2 Core 3 CLL mean 16.9 20.0 21.9 23.1 24.0 25.7 26.1 18.5 20.7 22.1 23.0 23.5 24.9 25.7 17.9 19.8 21.5 22.3 23.5 25.0 25.

Core 1 Core 2 Core 3 CLL mean 16.9 20.0 21.9 23.1 24.0 25.7 26.1 18.5 20.7 22.1 23.0 23.5 24.9 25.7 17.9 19.8 21.5 22.3 23.5 25.0 25. Module 4. Determining Plant Available Water Capacity The neutron moisture meter (NMM) A neutron moisture meter emits fast neutrons which are reflected back at slow speeds to a detector in proportion to

More information

RICE CULTIVATION: ENVIRONMENTAL ISSUES AND WATER SAVING APPROACHES

RICE CULTIVATION: ENVIRONMENTAL ISSUES AND WATER SAVING APPROACHES RICE CULTIVATION: ENVIRONMENTAL ISSUES AND WATER SAVING APPROACHES Ragab Ragab 1 Introduction Globally, rice is the most important food crop with more than 90% produced in Asia. In most of Asian countries,

More information

William Northcott Department of Biosystems and Agricultural Engineering Michigan State University. NRCS Irrigation Training Feb 2-3 and 9-10, 2010

William Northcott Department of Biosystems and Agricultural Engineering Michigan State University. NRCS Irrigation Training Feb 2-3 and 9-10, 2010 William Northcott Department of Biosystems and Agricultural Engineering Michigan State University NRCS Irrigation Training Feb 2-3 and 9-10, 2010 Irrigation Scheduling Process of maintaining an optimum

More information

Optional Soil Moisture Sensor Protocol

Optional Soil Moisture Sensor Protocol Optional Soil Moisture Sensor Protocol Purpose To measure the water content of the soil based on the electrical resistance of soil moisture sensors. Overview Students install soil moisture sensors in holes

More information

Instrument Construction and Installation

Instrument Construction and Installation Instrument Construction and Installation Instructions for Making and Installing a Frost Tube to Measure Depth of Frozen Ground Materials 6 9 mm (1/4 3/8 ) outside diameter clear tubing, about 3 m (10 )

More information

Impact of Water Saving Irrigation Systems on Water Use, Growth and Yield of Irrigated Lowland Rice

Impact of Water Saving Irrigation Systems on Water Use, Growth and Yield of Irrigated Lowland Rice Agriculture, Environment and Food Security in the Context of Rice Impact of Water Saving Irrigation Systems on Water Use, Growth and Yield of Irrigated Lowland Rice W. M. W. Weerakoon, T. N. N. Priyadarshani,

More information

SOP Field sampling for nitrous oxide (N 2 O), carbon dioxide (CO 2 ), and methane (CH 4 ) fluxes. Procedure Overview

SOP Field sampling for nitrous oxide (N 2 O), carbon dioxide (CO 2 ), and methane (CH 4 ) fluxes. Procedure Overview SOP Field sampling for nitrous oxide (N 2 O), carbon dioxide (CO 2 ), and methane (CH 4 ) fluxes Procedure Overview These greenhouse gases are emitted from soils at various rates dependent on environmental

More information

The Hydrologic Cycle. precipitation evaporation condensation transpiration infiltration surface runoff transport groundwater water table.

The Hydrologic Cycle. precipitation evaporation condensation transpiration infiltration surface runoff transport groundwater water table. The Hydrologic Cycle Page 1 of 1 Name Directions: The hydrologic cycle consists of the processes that change and move water through the earth s system. Use the terms below to label the hydrologic cycle.

More information

EXPERIMENT 10 CONSTANT HEAD METHOD

EXPERIMENT 10 CONSTANT HEAD METHOD EXPERIMENT 10 PERMEABILITY (HYDRAULIC CONDUCTIVITY) TEST CONSTANT HEAD METHOD 106 Purpose: The purpose of this test is to determine the permeability (hydraulic conductivity) of a sandy soil by the constant

More information

Attachment G-1: Pit Latrine Diagram. Fig E.1a: Pit Latrine. Fig E.1b: Plan View of Twin Pits

Attachment G-1: Pit Latrine Diagram. Fig E.1a: Pit Latrine. Fig E.1b: Plan View of Twin Pits Attachment G-1: Pit Latrine Diagram Fig E.1a: Pit Latrine Fig E.1b: Plan View of Twin Pits Fig E.1c: Section of a water-sealed pan Fig E.1d: 3D view of Overflow Pipe Fig E.1e: 2D view of Overflow Pipe

More information

CONSTANT HEAD AND FALLING HEAD PERMEABILITY TEST

CONSTANT HEAD AND FALLING HEAD PERMEABILITY TEST CONSTANT HEAD AND FALLING HEAD PERMEABILITY TEST 1 Permeability is a measure of the ease in which water can flow through a soil volume. It is one of the most important geotechnical parameters. However,

More information

SOIL WATER SAMPLE COLLECTOR. 1. Introduction

SOIL WATER SAMPLE COLLECTOR. 1. Introduction SOIL WATER SAMPLE COLLECTOR MARTIN VOLL 1 and OTT ROOTS 2 1 Environmental Research Centre, Marja 4D, EE0006 Tallinn, Estonia; 2 Environment Information Centre, Ministry of the Environment of Estonia, Mustamäe

More information

Prefill and Water Balance Criteria. Division of Water Quality Municipal Wastewater Treatment

Prefill and Water Balance Criteria. Division of Water Quality Municipal Wastewater Treatment Prefill and Water Balance Criteria Division of Water Quality Municipal Wastewater Treatment December 2010 Authors Brett Ballavance, P.E. Gene Erickson Nathan Groh Pamela Meyer, P.E. Dave Sahli, P.E. Vinod

More information

Information sheet on Soakaways in accordance with BRE Digest 365

Information sheet on Soakaways in accordance with BRE Digest 365 Information sheet on Soakaways in accordance with BRE Digest 365 CONSTRUCTION DETAILS Maintenance of soakaways has always presented problems, usually in finding them! This is certainly the case with rubble-filled

More information

GENERAL WATERING & CARE GUIDE

GENERAL WATERING & CARE GUIDE GENERAL WATERING & CARE GUIDE Between 30-60 percent of water applied to lawns and gardens is never absorbed by the plants. Water is often wasted because it is applied too quickly and runs off, evaporates

More information

EH-20 20m antenna. By VE3RGW

EH-20 20m antenna. By VE3RGW EH-20 20m antenna By VE3RGW Equivalent circuit of EH-20 (prototype 2A) antenna system. Upper cylinder Lower cylinder Ground Counter pose Phasing coil Impedance transformer and tune circuit Tune coil Feed

More information

Introduction to Irrigation Management. Evaluating your surface irrigation system

Introduction to Irrigation Management. Evaluating your surface irrigation system Introduction to Irrigation Management Evaluating your surface irrigation system Evaluating your surface irrigation system These materials are part of the education program Introduction to Irrigation Management.

More information

土 壤 物 理 題 庫 1. Prove the following relation of porosity to particle density and to bulk density: ƒ=(ρ s - ρ b )/ρ s = 1 - ρ b /ρ s

土 壤 物 理 題 庫 1. Prove the following relation of porosity to particle density and to bulk density: ƒ=(ρ s - ρ b )/ρ s = 1 - ρ b /ρ s 土 壤 物 理 題 庫 1. Prove the following relation of porosity to particle density and to bulk density: ƒ=(ρ s - ρ b )/ρ s = 1 - ρ b /ρ s 2. Prove the following relation between volume wetness, mass wetness,

More information

Water Resources Engineering Prof. R Srivastava Department of Civil Engineering Indian Institute of Technology, Kanpur. Lecture No.

Water Resources Engineering Prof. R Srivastava Department of Civil Engineering Indian Institute of Technology, Kanpur. Lecture No. 1 Water Resources Engineering Prof. R Srivastava Department of Civil Engineering Indian Institute of Technology, Kanpur Lecture No. 16 In today s lecture we will look at various components of the water

More information

Irrigation Management

Irrigation Management Irrigation Management The water requirement of cranberries during the growing season can vary from 0.4 to over 1.5 inches per week. Because of this variability, it is essential to adjust water management

More information

Irrigation and Water Use Tom Scherer, NDSU Extension Agricultural Engineer

Irrigation and Water Use Tom Scherer, NDSU Extension Agricultural Engineer Irrigation and Water Use Tom Scherer, NDSU Extension Agricultural Engineer For maximum yield potential, dry beans will need 14 to 18 inches of soil moisture during the growing season. With good management,

More information

HUMIDITY PASSIVE HARVEST TECNOLOGIES ASSESSMENT AND OPTIMIZATION

HUMIDITY PASSIVE HARVEST TECNOLOGIES ASSESSMENT AND OPTIMIZATION HUMIDITY PASSIVE HARVEST TECNOLOGIES ASSESSMENT AND OPTIMIZATION INCO: International Scientific Cooperation (2003-2005) Contract Number: ICA3-CT2002-10032 Palestinian Hydrology Group Ayman Rabi P. O. Box

More information

Unit D: Agricultural Equipment Systems. Lesson 4: Operating, Calibrating, and Maintaining Irrigation Systems

Unit D: Agricultural Equipment Systems. Lesson 4: Operating, Calibrating, and Maintaining Irrigation Systems Unit D: Agricultural Equipment Systems Lesson 4: Operating, Calibrating, and Maintaining Irrigation Systems Student Learning Objectives: Instruction in this lesson should result in students achieving the

More information

Tipping Bucket Rain Gauge Models 6011-A 6011-B

Tipping Bucket Rain Gauge Models 6011-A 6011-B Tipping Bucket Rain Gauge Models 6011-A 6011-B User s Manual 1165 National Drive Sacramento, CA 95834 800.824.5873 Table of Contents General Information... 1 Introduction... 1 Installation General... 2

More information

Rain Water Harvesting

Rain Water Harvesting Rain Water Harvesting Design Methodology & Structures Rain Water Concepts (I) Pvt. Ltd. Water for everyone RWH What is it? Rain Water Harvesting (RWH) is a mechanism to collect & store rain water for our

More information

AEROBIC RICE: WATER SAVING RICE PRODUCTION TECHNOLOGY

AEROBIC RICE: WATER SAVING RICE PRODUCTION TECHNOLOGY AEROBIC RICE: WATER SAVING RICE PRODUCTION TECHNOLOGY E. Subramanian 1, G. James Martin 2, E. Suburayalu 3 and R. Mohan 4 Abstract Field experiments were conducted at Central Farm, Coimbatore to develop

More information

fact sheet Infiltration trench How to construct an infiltration trench at a lot scale

fact sheet Infiltration trench How to construct an infiltration trench at a lot scale fact sheet Infiltration trench How to construct an infiltration trench at a lot scale Acknowledgement the information in this fact sheet has been adapted from the practice notes prepared by Storm Consulting

More information

INTRODUCTION TO WATER HARVESTING

INTRODUCTION TO WATER HARVESTING WATER HARVESTING AND AQUACULTURE FOR RURAL DEVELOPMENT INTRODUCTION TO WATER HARVESTING INTRODUCTION INTERNATIONAL CENTER FOR AQUACULTURE AND AQUATIC ENVIRONMENTS AUBURN UNIVERSITY Throughout history,

More information

9.00 THE USE OF HUNTER LAND DRAINAGE PERFORATED PIPES. Hunter Underground Systems

9.00 THE USE OF HUNTER LAND DRAINAGE PERFORATED PIPES. Hunter Underground Systems 9.00 THE USE OF HUNTER LAND DRAINAGE PERFORATED PIPES Hunter Underground Systems 9.01 General 9.02 Surface water Drainage 9.03 Groundwater Drainage 9.04 Dispersal of Septic Tank Effluent 9.01 The use of

More information

A Simple Flow Measuring Device for Farms

A Simple Flow Measuring Device for Farms Report 3: A Simple Flow Measuring Device for Farms College of Agriculture and Home Economics Cooperative Extension Service Agricultural Experiment Station A Simple Flow Measuring Device for Farms 1 Zohrab

More information

Module 6 : Quantity Estimation of Storm Water. Lecture 6 : Quantity Estimation of Storm Water

Module 6 : Quantity Estimation of Storm Water. Lecture 6 : Quantity Estimation of Storm Water 1 P age Module 6 : Quantity Estimation of Storm Water Lecture 6 : Quantity Estimation of Storm Water 2 P age 6.1 Factors Affecting the Quantity of Stormwater The surface run-off resulting after precipitation

More information

Water Saving Technology

Water Saving Technology Water Saving Technology Water Demand & Irrigation Miguel Aguila aguila@gemuese-garten.com Prof. Dr. S. Kleisinger Project for Water and Fertilizer Use Efficiency November 6, 2009 EDUCATIONAL AND WORK HISTORY

More information

Climate Change and Infrastructure Planning Ahead

Climate Change and Infrastructure Planning Ahead Climate Change and Infrastructure Planning Ahead Climate Change and Infrastructure Planning Ahead Infrastructure the physical facilities that support our society, such as buildings, roads, railways, ports

More information

Alternate wetting and drying irrigation for rice cultivation

Alternate wetting and drying irrigation for rice cultivation J. Bangladesh Agril. Univ. 6(2): 409 414, 2008 ISSN 1810-3030 Alternate wetting and drying irrigation for rice cultivation M.M.H. Oliver 1, M.S.U. Talukder and M. Ahmed Department of Irrigation and Water

More information

Balcony and terrace drainage

Balcony and terrace drainage Pipe systems Facade Syphonic Gravity 104 Pipe systems Facade Syphonic Gravity 105 ACO drains Pipe systems Facade Syphonic Gravity Flooding on balconies and terraces is a regular occurrence when drains

More information

Practice Tests Answer Keys

Practice Tests Answer Keys Practice Tests Answer Keys COURSE OUTLINE: Module # Name Practice Test included Module 1: Basic Math Refresher Module 2: Fractions, Decimals and Percents Module 3: Measurement Conversions Module 4: Linear,

More information

The Book-keeping Method of Irrigation Scheduling and its use for Turfgrass in

The Book-keeping Method of Irrigation Scheduling and its use for Turfgrass in The Book-keeping Method of Irrigation Scheduling and its use for Turfgrass in Louisiana Document prepared by David Greenland January 18, 2006. The book-keeping method of irrigation scheduling is based

More information

Sizewell B Power Station Dry Fuel Storage Project

Sizewell B Power Station Dry Fuel Storage Project Sizewell B Power Station Dry Fuel Storage Project SURFACE WATER DRAINAGE SCHEME Report prepared for: EDF Energy Author: C.G.Thackeray Approved: Youguang Pan McAlpine Design Group Edmundson House Tatton

More information

Technical items. 1. Plumbing ideas and options... 2

Technical items. 1. Plumbing ideas and options... 2 Technical items. We have made these details in downloadable pdf format for your convenience - simply download and hand to your consultant or adviser as required. Contents 1. Plumbing ideas and options....

More information

Answers. The Water Cycle. Year 7 Science Chapter 7

Answers. The Water Cycle. Year 7 Science Chapter 7 Answers The Water Cycle Year 7 Science Chapter 7 p153 1 Change of state from liquid to vapour happens over the water as liquid water evaporates into water vapour in the atmosphere. 2 The sun is the source

More information

Uncertainty in Measuring Length

Uncertainty in Measuring Length Uncertainty in Measuring Length In chemistry, you will be using measured numbers in lab, in exercises, and on tests and quizzes. The number of digits, i.e. significant figures, reported for a numerical

More information

WATER QUALITY MONITORING AND APPLICATION OF HYDROLOGICAL MODELING TOOLS AT A WASTEWATER IRRIGATION SITE IN NAM DINH, VIETNAM

WATER QUALITY MONITORING AND APPLICATION OF HYDROLOGICAL MODELING TOOLS AT A WASTEWATER IRRIGATION SITE IN NAM DINH, VIETNAM WATER QUALITY MONITORING AND APPLICATION OF HYDROLOGICAL MODELING TOOLS AT A WASTEWATER IRRIGATION SITE IN NAM DINH, VIETNAM LeifBasherg (1) OlujZejlllJul Jessen (1) INTRODUCTION The current paper is the

More information

EXPERIMENT 1. Precision of Measurements Density of a Metal Cylinder

EXPERIMENT 1. Precision of Measurements Density of a Metal Cylinder EXPERIMENT 1 Precision of Measurements Density of a Metal Cylinder Physics is a quantitative science, relying on accurate measurements of fundamental properties such as time, length, mass and temperature.

More information

Soil matters Defining the variables to calculate PAWC To determine PAWC, a number of soil variables have to be measured or calculated. These include:

Soil matters Defining the variables to calculate PAWC To determine PAWC, a number of soil variables have to be measured or calculated. These include: Module 4. Determining Plant Available Water Capacity 4. Determining Plant Available Water Capacity Introduction The climate and soils of the northern cropping region have determined the system of agriculture

More information

Department of Planning and Land Services Development Engineering

Department of Planning and Land Services Development Engineering Pierce County Department of Planning and Land Services Development Engineering SINGLE FAMILY RESIDENTIAL INFILTRATION DISPERSION SYSTEM DESIGN GUIDE 2015 Pierce County Stormwater Management and Site Development

More information

Improvement of water quality in Nakhon Ratchasima (Thailand) Technical Proposal. 22 May 2002

Improvement of water quality in Nakhon Ratchasima (Thailand) Technical Proposal. 22 May 2002 Improvement of water quality in Nakhon Ratchasima (Thailand) Technical Proposal 22 May 2002 Kitakyushu City Environment Preservation Association 1 Keiichi WATANABE, Naomichi SUGIMOTO 1 97-3 Nishiminato-machi,

More information

Measuring Irrigation Water in a Ditch, Stream or Reservoir

Measuring Irrigation Water in a Ditch, Stream or Reservoir University of Missouri Extension G1681, Reviewed October 1993 Measuring Irrigation Water in a Ditch, Stream or Reservoir Mark Peterson and C.F. Cromwell, Jr. Department of Agricultural Engineering Measuring

More information

PERMEABILITY TEST. To determine the coefficient of permeability of a soil using constant head method.

PERMEABILITY TEST. To determine the coefficient of permeability of a soil using constant head method. PERMEABILITY TEST A. CONSTANT HEAD OBJECTIVE To determine the coefficient of permeability of a soil using constant head method. need and Scope The knowledge of this property is much useful in solving problems

More information

Scottish Borders Council Building Standards Service Guidance

Scottish Borders Council Building Standards Service Guidance Scottish Borders Council Building Standards Service Guidance Building Standards (Scotland) Regulations 2004 Infiltration Systems - Mandatory Standard 3.9 1 Assessing the Suitability of the Ground for an

More information

You will need a metre tube. Insert the tube directly into the ground, twist and extract so you get approximately metres of soil.

You will need a metre tube. Insert the tube directly into the ground, twist and extract so you get approximately metres of soil. Soil quality testing Soil Core A soil core is useful when conducting the following tests for soil quality. It allows you to see and test soil properties that you otherwise would not have access to. You

More information

Soil-vegetation-atmosphere transfer in regional scale climate modeling. R.A. Feddes, K. Metselaar, l.wipfler and J.C. van Dam

Soil-vegetation-atmosphere transfer in regional scale climate modeling. R.A. Feddes, K. Metselaar, l.wipfler and J.C. van Dam Soil-vegetation-atmosphere transfer in regional scale climate modeling R.A. Feddes, K. Metselaar, l.wipfler and J.C. van Dam Water balance components P E R D root q p Global circulation Atmosphere Processes

More information

3 rd International Conference Research & Innovation in Engineering COMAT October 2014, Braşov, Romania

3 rd International Conference Research & Innovation in Engineering COMAT October 2014, Braşov, Romania 3 rd International Conference Research & Innovation in Engineering COMAT 2014 16-17 October 2014, Braşov, Romania THEORETICAL OVERALL ENERGY BALANCE IN A GREENHOUSE FOR FLOWERS Bodolan Ciprian 1, Gh. Brătucu

More information

METHOD A10 (a) THE DETERMINATION OF THE IN-PLACE DRY DENSITY OF SOIL OR GRAVEL BY THE SAND REPLACEMENT METHOD

METHOD A10 (a) THE DETERMINATION OF THE IN-PLACE DRY DENSITY OF SOIL OR GRAVEL BY THE SAND REPLACEMENT METHOD METHOD A10 (a) THE DETERMINATION OF THE IN-PLACE DRY DENSITY OF SOIL OR GRAVEL BY THE SAND REPLACEMENT METHOD 1 SCOPE The in-place dry density of compacted soil or gravel, as defined below, is determined

More information

City of Quinte West Storm Flow Management Section 7.0 Engineering Design Page 7-1 Standards January 2012

City of Quinte West Storm Flow Management Section 7.0 Engineering Design Page 7-1 Standards January 2012 Engineering Design Page 7-1 1.0 Storm Flow Management The objective of Storm Flow Management is to provide: The safe conveyance of stormwater to legal and adequate outlets Water quality control Flooding

More information

Fig. 3.1: Most of the plant s feeder roots are concentrated near the drip line, beneath the outer edge of the plant s foliage.

Fig. 3.1: Most of the plant s feeder roots are concentrated near the drip line, beneath the outer edge of the plant s foliage. Chapter 3: Harvesting rainwater for landscape use Topics to be covered in this chapter I. Why harvest rainwater? II. Creating a rainwater harvesting system III. Types of rainwater harvesting systems IV.

More information

INDUSTRY GUIDANCE FOR INSTALLERS ON CONDENSATE DRAINAGE PIPE INSTALLATION. This guidance is endorsed by HHIC members.

INDUSTRY GUIDANCE FOR INSTALLERS ON CONDENSATE DRAINAGE PIPE INSTALLATION. This guidance is endorsed by HHIC members. 1. BACKGROUND INDUSTRY GUIDANCE FOR INSTALLERS ON CONDENSATE DRAINAGE PIPE INSTALLATION This guidance is endorsed by HHIC members. During recent winters the UK has experienced prolonged spells of extremely

More information

Soaker Hoses for Trees & Foundations. Patty Sipe Heads Up Sprinkler Company www.headsupsprinkler.com

Soaker Hoses for Trees & Foundations. Patty Sipe Heads Up Sprinkler Company www.headsupsprinkler.com Soaker Hoses for Trees & Foundations Patty Sipe Heads Up Sprinkler Company www.headsupsprinkler.com U.S. Drought Monitor as of April 1, 2014 Lavon Lake Elevation as of April 7, 2014 2012 2013 2014 BY LAW:

More information

Homeowner s Guide Foundation Water PenetrationTips TIPS TO IDENTIFY WATER PENETRATION PROBLEMS / CRACKING BASEMENTS

Homeowner s Guide Foundation Water PenetrationTips TIPS TO IDENTIFY WATER PENETRATION PROBLEMS / CRACKING BASEMENTS Homeowner s Guide Foundation Water PenetrationTips TIPS TO IDENTIFY WATER PENETRATION PROBLEMS / CRACKING BASEMENTS MAINTAINING YOUR HOME BASEMENT FOUNDATION BY HOMEOWNER PREVENTATIVE MAINTENANCE LUX WATERPROOF

More information

Cotton Water Requirements in Humid Areas

Cotton Water Requirements in Humid Areas Cotton Water Requirements in Humid Areas Daniel K. Fisher USDA Agricultural Research Service, Stoneville, Mississippi In the humid Mid-South U.S., cotton irrigation is a challenge because of the variations

More information

WATER CONSERVATION TECHNICAL BRIEFS

WATER CONSERVATION TECHNICAL BRIEFS WATER CONSERVATION TECHNICAL BRIEFS TB 2 Rainwater Harvesting and Artificial Recharge to Groundwater SAI Platform August 2009 This document has been produced for internal information purposes only among

More information

HYDRAULIC ANALYSIS OF OIL SPILL CONTROL SYSTEMS AT ELECTRICAL TRANSFORMER STATIONS

HYDRAULIC ANALYSIS OF OIL SPILL CONTROL SYSTEMS AT ELECTRICAL TRANSFORMER STATIONS HYDRAULIC ANALYSIS OF OIL SPILL CONTROL SYSTEMS AT ELECTRICAL TRANSFORMER STATIONS JAMES LI (1) & CELIA FAN (2) (1) Department of Civil Engineering, Ryerson University, Toronto, Canada, jyli@ryerson.ca

More information

TexasET Network Water My Yard Program

TexasET Network Water My Yard Program TexasET Network Water My Yard Program What is the Water My Yard Program? The WaterMyYard Program (http://watermyyard.org) is a new program and website that solves two of the biggest problems in getting

More information

HYDRAULICS. H91.8D/C - Computerized Open Surface Tilting Flow Channel - 10, 12.5, 15 and 20 m long

HYDRAULICS. H91.8D/C - Computerized Open Surface Tilting Flow Channel - 10, 12.5, 15 and 20 m long HYDRAULICS H91.8D/C - Computerized Open Surface Tilting Flow Channel - 10, 12.5, 15 and 20 m long 1. General The series of channels H91.8D has been designed by Didacta Italia to study the hydrodynamic

More information

Modeling Impact of Climate Change on Hydrology of the Brahmani River Basin, India

Modeling Impact of Climate Change on Hydrology of the Brahmani River Basin, India Modeling Impact of Climate Change on Hydrology of the Brahmani River Basin, India Alok Kumar Sikka National Rainfed Area Authority, Planning Commission, Government of India, New Delhi, India Adlul Islam

More information

When considering Roof drainage design the following should be taken into account:

When considering Roof drainage design the following should be taken into account: Roof Drainage Design The primary objective of a gutter or spouting system is to remove water from the roof catchment area and channel that water to the ground drainage. Water ingress can have detrimental

More information

DESCRIPTION OF STORMWATER STRUCTURAL CONTROLS IN MS4 PERMITS

DESCRIPTION OF STORMWATER STRUCTURAL CONTROLS IN MS4 PERMITS DESCRIPTION OF STORMWATER STRUCTURAL CONTROLS IN MS4 PERMITS Phase I MS4 permits require continuous updating of the stormwater system inventory owned and operated by the MS4. They also include inspection

More information

Department of Water Resources Engineering Methods of estimating potential and actual evaporation

Department of Water Resources Engineering Methods of estimating potential and actual evaporation Department of Water Resources Engineering Methods of estimating potential and actual evaporation Erik Karlsson Lionel Pomade Summary This essay consists of the different methods of estimating both potential

More information

SECTION 6A STORM DRAIN DESIGN Mar. 2002 S E C T I O N 6A STORM DRAIN - DESIGN

SECTION 6A STORM DRAIN DESIGN Mar. 2002 S E C T I O N 6A STORM DRAIN - DESIGN S E C T I O N 6A STORM DRAIN - DESIGN 6A.l Scope 6A.2 Storm Water Quantity 6A.3 Storm Drain Hydraulics 6A.4 Depths 6A.5 Locations 6A.6 Curved Storm Drains 6A.7 Manholes 6A.8 Catch basins 6A.9 Storm Drain

More information

Small-Scale Irrigation Options

Small-Scale Irrigation Options Small-Scale Irrigation Options FGV-00646 Throughout Alaska, it can be highly beneficial to irrigate crops to supplement the moisture they receive from natural rainfall. Warm Alaska weather is often accompanied

More information

City of Edmonton Page 1 of 5 Foundation Drain Discharge Collection System Guideline November, 2005

City of Edmonton Page 1 of 5 Foundation Drain Discharge Collection System Guideline November, 2005 City of Edmonton Page 1 of 5 This guideline will apply to all new developments involving singledetached, semi-detached or duplex houses in the City of Edmonton effective January 1, 2006. Preamble: This

More information

LOOP ANTENNA. 50pF Door Knob capacitor 5KV S1b. Tuning pf. 1mA / 100uA

LOOP ANTENNA. 50pF Door Knob capacitor 5KV S1b. Tuning pf. 1mA / 100uA SMALL HF MAG-LOOP & ANTENNA TUNER (40m-17m) G3WME LOOP ANTENNA Heavy gauge wires used to cope with the high currents in the loop antenna Heavy Duty Electrical Connector PVC wire 4 turns T68 Red Toroid

More information

Determination of Water Requirements of Main crops in the Tank Irrigation Command area using CROPWAT 8.0.

Determination of Water Requirements of Main crops in the Tank Irrigation Command area using CROPWAT 8.0. International Journal of Interdisciplinary and Multidisciplinary Studies (IJIMS), 2014, Vol 1, No.5, 266-272. 266 Available online at http://www.ijims.com ISSN: 2348 0343 Determination of Water Requirements

More information

GARDENA Quick & Easy Micro-Drip-System

GARDENA Quick & Easy Micro-Drip-System GARDENA Quick & Easy Micro-Drip-System Accurate, Metered Irrigation Helps Reduce Water Consumption Includes Above and Below Ground Drip Irrigation Step by Step Planning & Installation Guide www.gardena.co.uk

More information

Guidelines for the Construction of Low Flow Bypass Devices

Guidelines for the Construction of Low Flow Bypass Devices TECHNICAL FACT SHEETS IN THIS SERIES Sheet 3a On-Stream Dams Sheet 3b Off-Stream Diversions Sheet 3c Off-Stream Diversion with a 50:50 Flow Split Small Weir to Divert Low Flows caption to go here Guidelines

More information

Heikki Turtiainen *, Pauli Nylander and Pekka Puura Vaisala Oyj, Helsinki, Finland. Risto Hölttä Vaisala Inc, Boulder, Colorado

Heikki Turtiainen *, Pauli Nylander and Pekka Puura Vaisala Oyj, Helsinki, Finland. Risto Hölttä Vaisala Inc, Boulder, Colorado 4.1 A NEW HIGH ACCURACY, LOW MAINTENANCE ALL WEATHER PRECIPITATION GAUGE FOR METEOROLOGICAL, HYDROLOGICAL AND CLIMATOLOGICAL APPLICATIONS Heikki Turtiainen *, Pauli Nylander and Pekka Puura Vaisala Oyj,

More information

No Rainfall Data is Collected

No Rainfall Data is Collected No Rainfall Data is Collected There are a number of issues that can cause the system to not collect rainfall data, from clogged collectors to hardware failure or improper part replacement. The most common

More information

Rainwater harvesting

Rainwater harvesting International training workshop on Key vulnerabilities in small island developing states: scope for technology cooperation with India Session II: Water availability and quality 22 nd August, 2005 Rainwater

More information

Best Practice in Row Crop Irrigation

Best Practice in Row Crop Irrigation 2004 G R D C F O R I R R I G A T I O N C R O P P E R S Best Practice in Row Crop Irrigation An introduction to WATERpak a guide for irrigation management in Cotton Paper prepared by DAVID WILLIAMS NSW

More information

RAINWATER HARVESTING FOR DRYLANDS - VOLUME 1. By Brad Lancaster, 2006. Appendix 3. Water-Harvesting Calculations

RAINWATER HARVESTING FOR DRYLANDS - VOLUME 1. By Brad Lancaster, 2006. Appendix 3. Water-Harvesting Calculations RAINWATER HARVESTING FOR DRYLANDS - VOLUME 1 By Brad Lancaster, 2006 Appendix 3 Water-Harvesting Calculations List of Equations and Other Information Box A3.1. Abbreviations, Conversions, and Constants

More information

Compressor - Loss of oil, Loss of oil pressure, or Cuts off on oil pressure control.

Compressor - Loss of oil, Loss of oil pressure, or Cuts off on oil pressure control. Compressor - Loss of oil, Loss of oil pressure, or Cuts off on oil pressure control. Compressor short cycling. Insufficient oil in the system. Oil trapping in the system. Probably in the evaporator. Excessively

More information

How To Retaining Wall Guide

How To Retaining Wall Guide How To Retaining Wall Guide Before you start: Consents and Engineering Building Consent Retaining walls over 1.5m high will require a building consent from the Local Body Council. Walls that carry extra

More information

United Arab Emirates University Date Palm Development Research Unit Dept. Date Palm Tissue Culture Laboratory (DPTCL)

United Arab Emirates University Date Palm Development Research Unit Dept. Date Palm Tissue Culture Laboratory (DPTCL) United Arab Emirates University Date Palm Development Research Unit Dept. Date Palm Tissue Culture Laboratory (DPTCL) Guidelines and Tips for the Cultivation of Tissue Culture-Derived Date Palm Trees Introduction

More information

Tailored Application Solutions

Tailored Application Solutions Tailored Application Solutions Performance. Period. A Step-By-Step Guide What are Your Needs? Step 1: Determine Your Application Needs Deciding on the correct water application solution is vital to your

More information

Efficient Irrigation

Efficient Irrigation Efficient Irrigation Prepared by: T. E. Bilderback and M. A. Powell Extension Horticulture Specialists Published by: North Carolina Cooperative Extension Service Publication Number: AG-508-6 Last Electronic

More information

Revise AS Level Geography for Edexcel specification B. sample material

Revise AS Level Geography for Edexcel specification B. sample material SAMPLE MATERIAL Revise AS Level Geography for Edexcel specification B Dulcie Knifton Student Book ISBN: 435 1154 4 sample material This sample contains sample pages from Revise AS Level Geography for Edexcel

More information

Establishing a website to aid growers in harvesting and irrigation decisions: PeanutFARM

Establishing a website to aid growers in harvesting and irrigation decisions: PeanutFARM Establishing a website to aid growers in harvesting and irrigation decisions: PeanutFARM D.L. ROWLAND 1, J.A. FERRELL 1, J.M. BENNETT 1, D.A. DREW 1, B.C. COLVIN 1, and W.H. FAIRCLOTH 2 1 Agronomy Department,

More information

INTEGRATED WATER MANAGEMENT FOR THE HUMID TROPICS 1. Introduction: Difficult hydrological characteristics of the humid tropics

INTEGRATED WATER MANAGEMENT FOR THE HUMID TROPICS 1. Introduction: Difficult hydrological characteristics of the humid tropics SESSION 1 PRACTICAL EXAMPLES THAT CALL FOR INTEGRATION OF IRRIGATION AND 27 DRAINAGE MANAGEMENT INTEGRATED WATER MANAGEMENT FOR THE HUMID TROPICS 1 L.K. Smedemaa and W.J. Ochsb 8 Theme Manager, International

More information

CSO Modelling Considering Moving Storms and Tipping Bucket Gauge Failures M. Hochedlinger 1 *, W. Sprung 2,3, H. Kainz 3 and K.

CSO Modelling Considering Moving Storms and Tipping Bucket Gauge Failures M. Hochedlinger 1 *, W. Sprung 2,3, H. Kainz 3 and K. CSO Modelling Considering Moving Storms and Tipping Bucket Gauge Failures M. Hochedlinger 1 *, W. Sprung,, H. Kainz and K. König 1 Linz AG Wastewater, Wiener Straße 151, A-41 Linz, Austria Municipality

More information

SINTEX RAIN WATER HARVESTING SYSTEM FOR DRINKING WATER/ REUSE

SINTEX RAIN WATER HARVESTING SYSTEM FOR DRINKING WATER/ REUSE SINTEX RAIN WATER HARVESTING SYSTEM FOR DRINKING WATER/ REUSE Sintex Sintex Industries Limited has been in the forefront of innovations in the field of plastics for over 30 years. With 12 different processes

More information

SECTION 02832 CHAIN LINK FENCE AND GATES

SECTION 02832 CHAIN LINK FENCE AND GATES SECTION 02832 CHAIN LINK FENCE AND GATES PART 1 GENERAL 1.01 SECTION INCLUDES A. Fabrication, furnishing and installation of chain link fence, chain link gates, and extension brackets with barbed wire.

More information

Grade 4 Standard 1 Unit Test Water Cycle. Multiple Choice. 1. Where is most water found on Earth? A. in glaciers B. in lakes C. in rivers D.

Grade 4 Standard 1 Unit Test Water Cycle. Multiple Choice. 1. Where is most water found on Earth? A. in glaciers B. in lakes C. in rivers D. Grade 4 Standard 1 Unit Test Water Cycle Multiple Choice 1. Where is most water found on Earth? A. in glaciers B. in lakes C. in rivers D. in oceans 2. What source of energy evaporates the most water from

More information

Unit 2: Weather. ways to keep track of common trends in weather patterns. some have scientific facts, while others are more about coincidence

Unit 2: Weather. ways to keep track of common trends in weather patterns. some have scientific facts, while others are more about coincidence Unit 2: Weather Weather Lore: ways to keep track of common trends in weather patterns some have scientific facts, while others are more about coincidence weather lore may vary from place to place as different

More information

AP2 Fluids. Kinetic Energy (A) stays the same stays the same (B) increases increases (C) stays the same increases (D) increases stays the same

AP2 Fluids. Kinetic Energy (A) stays the same stays the same (B) increases increases (C) stays the same increases (D) increases stays the same A cart full of water travels horizontally on a frictionless track with initial velocity v. As shown in the diagram, in the back wall of the cart there is a small opening near the bottom of the wall that

More information

Turf-Tec Moisture Sensor

Turf-Tec Moisture Sensor Turf-Tec Moisture Sensor Turf-Tec Moisture Sensor - For all turfgrass areas. Specially designed quick probe depth adjustment from zero to four inches deep. Instant read out dial tells you the percentage

More information

ROOF DRAINS TABLE OF CONTENTS

ROOF DRAINS TABLE OF CONTENTS Pictorial Index Product Recommendations Roof Drain Selection Factors Sizing Placement Material & Characteristics Pipe Connection Commonly Specified Options Typical Installations TABLE OF CONTENTS ROOF

More information

LAB 24 Transpiration

LAB 24 Transpiration Name: AP Biology Lab 24 LAB 24 Transpiration Objectives: To understand how water moves from roots to leaves in terms of the physical/chemical properties of water and the forces provided by differences

More information

Capillary Water Provision System for Irrigation

Capillary Water Provision System for Irrigation IJIRST International Journal for Innovative Research in Science & Technology Volume 1 Issue 11 April 2015 ISSN (online): 2349-6010 Capillary Water Provision System for Irrigation Joju Thomas K Dheeraj

More information