Ediz.: Issue: draft GLASNOWMAP INFORMATION SERVICE - USER REQUIREMENTS DOCUMENT. Firma Signature. Data Date

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1 Tipo Doc.: Doc.Type: N Doc.: Doc. N : Titolo : Title : N DRD: DRD N : NA - 1 Di Of 15 Nome & Funzione Name & Function Firma Signature Data Date LISTA DI DISTRIBUZIONE DISTRIBUTION LIST N A I Preparato da: Prepared by: A. Rampini (IREA Milano) Interna / Internal Approvato da: Approved by: L. Tampellini (CGS) E. Della Nave ( PA) L. Di Gioia ( PC/CC) Applicazione autorizzata da: Application authorized by: L. Tampellini ( Program Manager) Esterna / External All GLASNOWMAP Users Customer / Higher Level Contractor Accettato da: Accepted by: Approvato da: Approved by: N=Numero copie A=Applicazione I=Informazione N=Number of copy A=Application I=Information Gestione documenti: Data Management: Firma / Signature Data / Date File: User Requirements.doc Questo documento contiene informazioni proprietà CARLO GAVAZZI SPACE SpA: Tutti i ritti sono riservati

2 2 REGISTRAZIONE DELLE MODIFICHE / CHANGE RECORD EDIZIONE ISSUE DATA DATE Draft AUTORIZZAZIONE CHANGE AUTHORITY OGGETTO DELLA MODIFICA E SEZIONI AFFETTE REASON FOR CHANGE AND AFFECTED SECTIONS Questo documento contiene informazioni proprietà CARLO GAVAZZI SPACE SpA. Tutti i ritti sono riservati.

3 3 LISTA DELLE PAGINE VALIDE / LIST OF VALID PAGES PAGINA PAGE EDIZIONE ISSUE PAGINA PAGE EDIZIONE ISSUE PAGINA PAGE EDIZIONE ISSUE PAGINA PAGE EDIZIONE ISSUE PAGINA PAGE EDIZIONE ISSUE 1-15 Questo documento contiene informazioni proprietà CARLO GAVAZZI SPACE SpA. Tutti i ritti sono riservati.

4 4 TABLE OF CONTENT 1. SCOPE APPLICABLE DOCUMENTS INTRODUCTION DEFINITION USER REQUIREMENTS FUNCTIONAL REQUIREMENTS PRODUCT REQUIREMENTS PERFORMANCE REQUIREMENTS INTERFACES REQUIREMENTS POTENTIAL ADDITIONAL USER USER PROFILE AND REQUIREMENTS OF IST Questo documento contiene informazioni proprietà CARLO GAVAZZI SPACE SpA. Tutti i ritti sono riservati.

5 5 1. SCOPE This document is the output of WP 1-ADKA of the GLASNOWMAP project [AD2]. Its aim is to define the User Requirements of the GLASNOWMAP Information Service to be designed and developed in the course of the project. It will be input to WP 1-ADKB Product & Service Definition activities. This document has been written by IREA Milano using the information collected from the Users that have expressed their interest to collaborate to the project. This document will be stributed to all Glasnowmap Users, in order to collect from them comments and/or further requirements. This User Requirements Document will be scussed at Progress Meeting 1 of the GLASNOWMAP Project ( 8 March 2002) in order to scuss, agree and freeze the document. 2. APPLICABLE DOCUMENTS [AD1] ESA Statement of Work : DUP Phase II Call for Proposals. Appenx 1 : Statement of Work and Technical Specification issue 5 revision EEM-AEP/DUP/CFP2001 [AD2] CGS proposal N S1-031, GLASNOWMAP Information Service, June 2001 [AD3] Space Engineering SW ECSS-E-40A, April 1999 Questo documento contiene informazioni proprietà CARLO GAVAZZI SPACE SpA. Tutti i ritti sono riservati.

6 6 3. INTRODUCTION The GLASNOWMAP project proposes to define and implement an information service for monitoring glacier and snow cover changes in Alpine regions. The three main tasks to be performed by the GLASNOWMAP IS are: Snow Cover Mapping Service Snow Melting Mapping Service Glacier Monitoring Service In the following tables the sub-tasks of the GLASNOWMAP users are summarized for each service type. SNOW COVER MAPPING SERVICE USER Sub-tasks 1 - ARPA Lombara (ARPAL) Snow cover monitoring for hydrogeological hazard monitoring 2 - ARPA Piemonte (ARPAP) Snow cover monitoring for hydrogeological hazard monitoring 3 - ARPA Val d'aosta (ARPAVDA) Snow cover monitoring for glaciological and hydrological purposes 4 - Società Meteorologica Italiana Snow cover monitoring for glaciological and hydrological (SMI) purposes 5 - Regione Val d'aosta (RAVA) Snow cover monitoring for touristic purposes SNOW MELTING MAPPING SERVICE USER Sub-tasks 6 - Regione Val d'aosta (RAVA) Snow depletion for hydrological and agricultural purposes GLACIERS MONITORING SERVICE USER Sub-tasks 7 - ARPA Val d'aosta (ARPAVDA) 8 - Comitato Glaciologico Italiano Morphological and mass variations of glaciers (CGI) 9 - ETH - Zurich (ETH) GLASNOWMAP IS will be constituted by three fferent software modules each of them performing a specific task. The fferent sub-tasks will be achieved by tailoring GLASNOWMAP modules for each user objective. Questo documento contiene informazioni proprietà CARLO GAVAZZI SPACE SpA. Tutti i ritti sono riservati.

7 7 3.1 DEFINITION The activities of GLASNOWMAP IS can be logically separated at three levels (see figure 1): Data management, processing and interpretation level: activities of the data processing system specialized to each task, i.e. Snow Cover Mapping, Snow Melting Mapping and Glacier Monitoring Application level activities, receiving requests from users and organizing results obtained at the above level to specialize and spatch outputs for each of the sub-tasks User level activities, which provides to the various users suitable interface facilities and access methods to exploit data obtained and organized at the above two levels, and analysis functions in accordance to user requirements GLASNOWMAP MAPPING SYSTEM (BACK-END) SNOW COVER MAPPING SYSTEM SNOW MELTING MAPPING SYSTEM GLACIERS MAPPING SYSTEM OUTPUT TAILORING AND ORGANIZATION GLASNOWMAP APPLICATION SERVER (FRONT-END) SERVICE 1 SERVICE 2 SERVICE 9 ACCESS REQUESTS RESULT DISTRIBUTION ARPAL ARPAP SMI RAVA ARPAV CGI ETH USER INTERFACES Figure 1: Logical organization of the activities of the GLASNOWMAP IS Questo documento contiene informazioni proprietà CARLO GAVAZZI SPACE SpA. Tutti i ritti sono riservati.

8 8 4. USER REQUIREMENTS With reference to the above section and to figure 1, the specification of the requirements of the users is necessary to define the characteristics of the whole service at the three levels, i.e. the specifications for design and developing the data models and the processing systems (back-end level); the tailoring procedures and the organization model of the results (front-end level); the user interfaces (user level). The requirements of the project users, i.e. their expectations in terms of functions of the service and of data to be obtained (types, formats, temporal frequences, etc.) in order to achieve their purposes are listed here following. 4.1 FUNCTIONAL REQUIREMENTS A great interest in the use of remote sensing techniques for environment monitoring has been demonstrated by the project users for both the evaluation of the present environmental contions and the analysis of the change trends. In particular the interest of the ARPA Valle d'aosta, the Italian Glaciological Committee and the Laboratory of Hydraulic (ETH - Zurich) is related to the evaluation of the frontal variation and massbalance of glacier as incators of complex phenomena of climatic changes. The knowledge of snow cover extension variations during the year is of great importance for the Valle d'aosta Region, the Piemonte Region, the Lombara Region and the Società Meteorologica Italiana for fferent interests and purposes. In the following the detailed list of user requirements with respect to the three service types of the project and for each user are described. SNOW COVER MAPPING SERVICE General objective: snow cover changes monitoring in accumulation and/or depletion phases. 1 - ARPAL requirement definition Overall requirement: Snow cover in Lombara Region for hydrogeological hazard purposes List of the related subrequirements: Presence of snow Persistence of snow cover Status of snow cover (albedo, temperature) Depth of snow (desirable) Notes: The ARPAL interest lies in the evaluation of the relations between the presence of permafrost and the snow cover extent and evolution. These phenomena are related to climatological changes and are linked, in complex mountain landscape, to land surface processes as slope instability. A quantitative estimation of the snow cover extent and persistence during an entire season, therefore, may improve the knowledge about the appearance or sappearance of permafrost. 2 -ARPAP requirement definition Overall requirement: Snow cover in Piemonte Region for hydrogeological hazard purposes List of the related subrequirements: Presence of snow Questo documento contiene informazioni proprietà CARLO GAVAZZI SPACE SpA. Tutti i ritti sono riservati.

9 9 Persistance of snow cover Snow cover classes Depth of snow (desirable) Notes: See ARPAL 3 - ARPAVDA requirement definition Overall requirement: Snow cover in Val d'aosta Region for Glaciological and hydrological purposes List of the related subrequirements: Extent of snow cover Snow cover classes Depth of snow (desirable) Notes: ARPAVDA interest lies in the periocal monitoring of the snow cover stribution and extention in order to obtain statistical evaluations of snow. This interest is related to variations of snow cover extent both for the evaluation of snow water equivalent and glacial mass balance for hydrological purposes. 4 - SMI requirement definition Overall requirement: Snow cover in Western Italian Alps (Piemonte and Val d'aosta) for glaciological and hydrological purposes List of the related subrequirements: Extent of snow cover Snow cover classes Depth of snow (desirable) Notes: SMI daily collects ground measurements of snow depth in 50 stations at an elavation less then 2000 m a.s.l. and 10 stations between 2000 and 3000 m. In this framework, SMI interest lies in the periocal monitoring of the snow cover stribution and extention in order to obtain statistical evaluations of snow presence independent from the analysis performed by punctual measurements of the meteorological stations. This interest is related to variations of snow cover extent both for the evaluation of snow water equivalent and glacial mass balance for hydrological purposes and for the analysis of climate change phenomena. The implementation of a procedure to compute the snow cover depth by inteprolating to the whole test area data of snow depth measured at single points stributed in the region is also desirable. 5 - RAVA requirement definition Overall requirement: Snow cover in Val d'aosta Region for touristic purposes List of the related subrequirements: Extent of snow cover Snow cover classes Depth of snow (desirable) Notes: RAVA is interested in a periocal knowledge of the extension and contions of snow for touristic purposes. SNOW MELTING MAPPING SERVICE General objective: snow cover changes monitoring in the depletion phase. Questo documento contiene informazioni proprietà CARLO GAVAZZI SPACE SpA. Tutti i ritti sono riservati.

10 RAVA requirement definition Overall requirement: Water availability from snow-melt in Valle d'aosta Region List of the related subrequirements: Snow cover depletion in Basins for hydrological purposes Snow cover extent Notes: Information on the effects of climate change on the environment, and in particular snow-water equivalent and similar, is particularly useful for RAVA which is responsible for the environment management related to the following territorial aspects: agriculture operators (involved in farming, production of human and animal feeng, etc.) mountain communities the National Forrest Body Electric Energy Producers that need information on water reserves variations Water quality management operators GLACIERS MONITORING SERVICE General objective: monitoring of glacier variations ARPAVDA CGI/ ETH requirement definition Overall requirement: Morphological and mass variations of glaciers (Lys, Gorner and Adamello) List of the related subrequirements: Annual maps of the Lys/Gorner/Allalin/Adamello glaciers body Altitude of equilibrium line (ELA) Altitude of terminus Accumulation basin extention Ablation basin extention Notes: Users are interested in the evaluation of the use of remote sensing techniques in identifing morphological and mass variations of glaciers and in the comparison of the results obtained with ground truth data collected during the trational glaciological campaigns. Questo documento contiene informazioni proprietà CARLO GAVAZZI SPACE SpA. Tutti i ritti sono riservati.

11 PRODUCT REQUIREMENTS SNOW COVER MAPPING SERVICE 1 - Product qualification for ARPAL requirements Georeferred snow cover maps in which fferent types of snow are identified. Albedo and temperature maps. Information on depth of snow, obtained from ground measurements, is also desirable. 2 - Product qualification for ARPAP requirements Georeferred snow cover maps in which fferent types of snow are identified. Geometric parameters and statistics on classes identified Information on depth of snow, obtained from ground measurements, is also desirable. 3 - Product qualification for ARPAVDA requirements Georeferred snow cover maps in which fferent types of snow are identified. Geometric parameters and statistics on classes identified Information on depth of snow, obtained from ground measurements, is also desirable. 4 - Product qualification for SMI requirements Georeferred snow cover maps in which fferent types of snow are identified. Geometric parameters and statistics on classes identified: percentage of snow cover in user defined areas Information on depth of snow, obtained from ground measurements, is also desirable 5 - Product qualification for RAVA requirements Georeferred snow cover maps in which fferent types of snow are identified. Geometric parameters and statistics on classes identified Information on depth of snow, obtained from ground measurements, is also desirable SNOW MELTING MAPPING SERVICE 6 - Product qualification for RAVA requirements River scharge values derived from snow cover maps through the use of a snow-melt runoff model GLACIERS MONITORING SERVICE Product qualification for ARPAVDA/ CGI/ ETH requirements Georeferred glacier maps in which accumulation basin, ablation basin and snowline are identified Geometric parameters and statistics on classes identified Questo documento contiene informazioni proprietà CARLO GAVAZZI SPACE SpA. Tutti i ritti sono riservati.

12 PERFORMANCE REQUIREMENTS SNOW COVER MAPPING SERVICE USER/ AREA 1-ARPAL Regione Lombara Output data Resolution Deliver frequence Thematic maps in 300 m Every 10 days which fferent 150 m Every 20 days types of snow are identified Period From November to July Test Area Lombara Region Albedo maps Temperature maps Map of snow depth (Desirable) 2-ARPAP Regione Piemonte Thematic maps in which fferent types of snow are identified 300 m 150 m Every 10 days Every 20 days From November to July Piemonte Region Map of snow depth (Desirable) 3-ARPAVDA Regione Val d'aosta Thematic maps in which fferent types of snow are identified 300 m 150 m Every 10 days Every 20 days From November to July Val d'aosta Region Map of snow depth (Desirable) 4-SMI Regione Piemonte Thematic maps in which fferent types of snow are identified 300 m 150 m Every 10 days Every 20 days From November tojuly Piemonte Region Map of snow depth (Desirable) 5-RAVA Regione Val d'aosta Thematic maps in which fferent types of snow are identified 300 m 150 m Every 10 days Every 20 days From November to July Val d'aosta Region Map of snow depth (Desirable) Questo documento contiene informazioni proprietà CARLO GAVAZZI SPACE SpA. Tutti i ritti sono riservati.

13 13 SNOW MELTING MAPPING SERVICE USER/ AREA 6-RAVA Regione Val d'aosta Output data Resolution Deliver frequence Thematic maps of 300 m Every 20 days snow cover extent 150 m Period Test Area From April to July Basin 1 - Dora Baltea Morgex Station (924 m. a.s.l.) Km Basin 2 - Dora Baltea Aymavilles Station (618 m. a.s.l.) Km Basin 3 - Dora Baltea Brissogne Station (530 m. a.s.l.) Km GLACIERS MONITORING SERVICE USER/ AREA ARPAVDA Output data Resolution Deliver frequence Period Test area Thematic maps in 30 m Every 1 year August/September Lys Glacier which classes to be identified are: Snow, Ice, Other CGI ETH Thematic maps in which classes to be identified are: Snow, Ice, Other Thematic maps in which classes to be identified are: Snow, Ice, Other 30 m Every 1 year August/September Lys Glacier Adamello Glacier 30 m Every 1 year August/September Gorner Glacier Allalin Glacier Questo documento contiene informazioni proprietà CARLO GAVAZZI SPACE SpA. Tutti i ritti sono riservati.

14 INTERFACES REQUIREMENTS As sketched in figure 1 the main goals of the user interfaces are: Access to the services and specify the user requests Search for suitable data Download results It must be noticed that all users are interested in obtaining the results of data processing in formats compatible with the de-facto standards of wide-spread commercial Geographic Information Systems. 5. POTENTIAL ADDITIONAL USER This section introduces one more potential user, the Institute of Earth Sciences (IST) of the University of Applied Sciences of Southern Switzerland, who is interested in joining the project as observer to evaluate the feasibility of methods and results for its own purposes. In particular IST may refine its interest in the project for the management of the Verbano Lake if the investigations will demonstrate that the snow cover extent determined by the GLASNOWMAP IS together with the snow height measured at single scattered points (to be interpolated to the whole area) makes it possible to estimate the total snow water content of a catchment basin. 5.1 USER PROFILE AND REQUIREMENTS OF IST The (Istituto Scienze della Terra, IST) of the University of Applied Sciences of Southern Switzerland (Scuola universitaria professionale della Svizzera Italiana) is entrusted by the cantonal authorities of Ticino as a service center with mandates in the areas of: Natural hazards monitoring and prevention Energetic resources Water resources planning and management GIS, territorial databases and GPS Technical-scientific support in the area of territorial zonal planning. IST holds mandates by the cantonal authorities of Ticino in the fields of: Geology and Hydrogeology (environment geological monitoring, subsurface water cataster, cataster of zones exposed to natural hazards) Hydrology (management of rainfall and runoff network measurement, determination of maximum flood events in the cantonal river network, determination and control of minimal runoff downstream of intake stations, regulation of the Lake of Lugano, control of hydroelectric dams in Canton Ticino in cooperation with the federal authorities) Land planning (cantonal plan on protection and resanation (Piano cantonale premunizione e risanamento), master plan (piano rettore), law on territorial planification (Legge sulla pianificazione del territorio), law on constructions (Legge elizia)). User requirements With its involvement in the management of the Verbano Lake, IST is highly interested in evaluating remote-sensing techniques for snowcover mapping at regional scale. During two meetings at the IST premises, IST better characterized its requirements. The interest is on the determination of the snow cover quantity stored during the winter in the Verbano catchment basin. The mapping of the snowcover extent without knowledge of its height (or water equivalent) is not adequate for IST. The interest is not on a weekly forecast of the runoff, but on an estimate of the total runoff in spring. Knowing how much snow is retained in the mountains before the spring may serve as Questo documento contiene informazioni proprietà CARLO GAVAZZI SPACE SpA. Tutti i ritti sono riservati.

15 15 input for the management of the water height of the Verbano Lake, because the water of this lake is used for the irrigation of fields in Piemonte and Lombara. Current user practices Currently, there are no user practices to determine the amount of snowcover in the Verbano catchment basin and to estimate the total runoff in spring. Questo documento contiene informazioni proprietà CARLO GAVAZZI SPACE SpA. Tutti i ritti sono riservati.

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