Satellite Imagery from the U.S. Geological Survey

Transcription

1 Satellite Imagery from the U.S. Geological Survey Bruce K. Quirk & John L. Faundeen - Presented by James A. Sturdevant ASPRS Conference Technology: Converging at the Top of the World May 5-9, 2003 Anchorage, AK U.S. Department of the Interior U.S. Geological Survey

2 Outline Mission / Mandate Satellite Holdings Access Means Future Directions

3 Mission / Mandate World's largest collection of civilian remotely sensed data covering the Earth's land surface National Satellite Land Remote Sensing Data Archive World Data Center for Remotely Sensed Land Data Land Processes Distributed Active Archive Center Landsat Program United Nations Environment Programme/ Global Resources Information Database

4 National Satellite Land Remote Sensing Data Archive Established by the Land Remote Sensing Policy Act of 1992 (Public Law ) It is in the best interest of the United States to maintain a permanent,, comprehensive Government archive of global Landsat and other land remote sensing data for long-term monitoring and study of the changing global environment. DOI shall provide for long-term storage, maintenance, and upgrading of a basic, global, land remote sensing data set...and shall follow reasonable archival practices to assure proper storage and preservation of the basic data set and timely access for parties requesting data.

5 National Satellite Land Remote Sensing Data Archive Declassified Intelligence Satellite Photography Corona Argon Lanyard KH-7 KH-9 Landsat MSS Landsat TM AVHRR

6 World Data Center for Remotely Sensed Land Data World Data Centers (WDC) are designated by the International Council of Scientific Unions (ICSU), Panel on World Data Centers. Data constitute the raw material of scientific understanding. The World Data Center system works to guarantee access to solar, geophysical, and related environmental data. It serves the whole scientific community by assembling, scrutinizing, organizing, and disseminating data and information.

7 World Data Center for Remotely Sensed Land Data In the U.S., the World Data Center Coordination Office is managed by the U.S. National Academy of Sciences through its Committee on Geophysical and Environmental Data. In 1992, the USGS EROS Data Center was designated as a World Data Center for Remotely Sensed Land Data.

8 Land Processes Distributed Active Archive Center Established as part of NASA's Earth Observing System (EOS) Data and Information System (EOSDIS) initiative to process, archive, and distribute land-related data collected by EOS sensors, thereby promoting the interdisciplinary study and understanding of the Earth system.

9 Land Processes Distributed Active Archive Center EOS Terra satellite was launched on December 18, Terra carries two sensing systems for which the LP DAAC has data processing and/or distribution responsibilities. the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) and the Moderate Resolution Imaging Spectroradiometer (MODIS). Numerous ASTER and MODIS data products are publicly available from the LP DAAC.

10 Land Processes Distributed Active Archive Center EOS Aqua satellite was launched, May 4, Aqua continues the MODIS sensor tradition by providing afternoon data to complement the Terra morning data stream.

11 Landsat Program The longest-running enterprise for acquisition of moderate resolution imagery of the Earth from space. Landsat 1 was launched in The most recent, Landsat 7, was launched in Instruments on the Landsat satellites have acquired millions of images. These images form a unique resource for applications in agriculture, geology, forestry, regional planning, education, mapping, and global change research.

12 Landsat Program A joint initiative of the USGS and NASA to gather Earth resource data using a series of satellites. NASA was responsible for developing and launching the spacecrafts. USGS is responsible for flight operations, and management of all ground data reception, processing, archiving, product generation, and distribution.

13 Landsat Program The objective of the Landsat Program is to ensure a collection of consistently calibrated Earth imagery. Landsat s global survey mission is to establish and execute a data acquisition strategy that ensures repetitive acquisition of observations over the Earth s land mass, coastal boundaries, and coral reefs; and to ensure the data acquired are of maximum utility in supporting the scientific objectives of monitoring changes in the Earth s land surface and associated environment.

14 United Nations Environment Programme/ Global Resources Information Database The North American Node of UNEP GRID, located at the USGS EROS Data Center since 1991, is in the forefront of applying information ion technology tools such as remote sensing,, Geographic Information Systems (GIS) and web mapping to address the relationships between the environment and human populations ( usgs.gov).

15 Satellite Holdings Data Set Time Span Number of Records Declassified ,000,000 Landsat MSS ,000 Landsat TM 1982-Today 560,000 Landsat ETM Today 350,000 AVHRR 1987-Today 280,000 EO Today 15,000 ASTER 1999-Today 1,350,000 MODIS 1999-Today 5,100,000 SRTM Feb 2002 Seamless

16 Satellite Holdings - Declassified

17 Satellite Holdings - Landsat MSS

18 Satellite Holdings - Landsat TM

19 Satellite Holdings - ETM+

20 Satellite Holdings - AVHRR

21 Satellite Holdings EO-1 Hyperion ALI

22 Satellite Holdings - ASTER

23 Satellite Holdings - MODIS

24 Satellite Holdings - SRTM

25 Access Means Earth Explorer EOS Data Gateway GloVis Earthshots

26 Access Means Earth Explorer USGS data discovery, access and ordering tool. Functionality includes: secure credit card/e-commerce commerce order system, cross-inventory searching, and a subscription query/order capability that greatly expands data access possibilities for researchers. earthexplorer.usgs.govgov

27 Access Means Earth Explorer

28 Access Means EOS Data Gateway NASA World Wide Web-based based query system. Provides information on a variety of data sets, including: documentation, image browse (depending upon the data set), and ordering services. redhook.gsfc.nasa.gov/imswww/pub/ /pub/imswe lcome/

29 Access Means - Glovis Quick and easy online search and order tool for selected satellite data. Allows user-friendly access to all available browse images from the Landsat 7 (ETM+) and Landsat 4/5 (TM) sensors. Allows access to ASTER Level-2 Decorrelated Stretch VNIR browse images from the LP DAAC inventory. Through a graphic map display, the user can select any area of interest and immediately view all available browse images for the specified location. glovis.usgs.gov/

30 Access Means - Glovis

31 Access Means - Earthshots An ebook of before-and and-after after satellite images showing recent environmental events and introducing remote sensing. Illustrates changes on the Earth s surface from deforestation, urbanization, agricultural expansion, floods, volcanic events, fire, and drought using Landsat, AVHRR, SPOT, and MODIS data. earthshots.usgs.govgov

32 Access Means - Earthshots Table of contents 12 January 2001 First-time readers: start at Garden City, Kansas. Future readers: get announcing new Earthshots. Bells and whistles Garden City, Kansas: introduction/help Mozambique: greenup/browndown animation Filchner Ice Shelf: simulated elevation Las Vegas, Nevada: landcover maps EROS Data Center: TV, radar, PCA Wyperfeld N.P., Australia: 25-year animation Knife River, Canada: vegetation-index images Agriculture articles Nile River Delta, Egypt Garden City, Kansas Elburz Mountains, Iran Southern Mauritania Phnom Penh, Cambodia Imperial Valley, California Mozambique Chernobyl, Ukraine EROS Data Center Riyadh, Saudi Arabia IJsselmeer, Netherlands Lake Chad, West Africa

33 Aral Sea, Kasakhstan May 1973 Landsat 2 July 2000 Landsat 7 August 1987 Landsat 5

34 Future Directions New Data Sets Landsat Data Continuity Mission (LDCM) SAR Commercial Improved Access and Distribution Low cost data, Landsat for $50/scene More distribution over networks Shorter turn around from acquisition to availability Seamless presentation ( usgs.gov) The National Map

35 Questions?