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Released deliverables

GlobSnow-2 Deliverables

Algorithm Theoretical Basis Document - SE algorithm

Deliverable 9 gives a detailed description of the algorithms for generating the GlobSnow-2 Snow Extent (SE) product.

Algorithm Theoretical Basis Document - SWE algorithm

Deliverable 6 gives a detailed description of the algorithms for generating the GlobSnow-2 Snow Water Equivalent (SWE) product.




GlobSnow-1 Deliverables

Final Report (FR)

This Final Report presents an overview on the main activities and a synthesis of key resultsof the ESA GlobSnow project.

Service Evolution Report v2 (SER-v2)

The Service Evolution Report v2 (SER-v2) describes the evaluation of the candidate upgrades for the GlobSnow SE and SWE FPS v1.0 products. There are several proposed enhancements to both SE and SWE production algorithms that are evaluated and discussed within this report. The primary purpose of SER-v2 is to present the reasoning and the basis for selection of the algorithms and auxiliary production data for next version (v1.2) of the SWE and SE FPS datasets.

Service Evolution Report (SER)

The Service Evolution Report (SER) describes the evaluation of the candidate upgrades for the GlobSnow SE and SWE FPS v1.0 products. There are several proposed enhancements to both SE and SWE production algorithms that are evaluated and discussed within this report. The primary purpose of SER is to present the reasoning and the basis for selection of the algorithms and auxiliary production data for next version of the SWE and SE FPS datasets.

Production and Validation Report (PVR)

The Production and Validation Report (PVR) reports the validation carried out for the Snow Water Equivalent (SWE) and the Snow Extent (SE) Full Product Sets (FPS) version 1.0 for the GlobSnow project.

2nd Updated Design Justification File (DJF-v3-r2)

The Second Design Justification File (DJF-vr-r2) presents the results from the additional algorithm evaluations carried out for the Snow Water Equivalent (SWE) and the Snow Extent (SE) prototype products for the GlobSnow project. It supplements the DJF-v1 and DJF-v2 published earlier and describes the last algorithm evaluation results for the prototype products of v.0.9.2 of SWE and v.0.9.5 of SE.

Technical note 2: Cloud Detection Algorithm SCDA

A technical description of the GlobSnow cloud detection algorithm (SCDA).

Prototype Validation and Assessment Report (PVAR)

The Prototype Validation and Assessment Report (PVAR) details the results of the validation and assessment process for each prototype of the information services and products to be delivered. The prototype products are validated by exploiting the ground-truth information available and assessed from the users in respect of usability and added value.

Qualification Review Report (QRR)

The Qualification Review Report (QRR) documents the outcome of the Qualification review (QR) of the GlobSnow Processing System (PS) following the procedures outlined in the Acceptance Test Document (ATD).

Design Definition File (DDF)

The Design Definition File (DDF) deals with the selection of algorithms for mapping snow extent and snow water equivalent. The selected algorithms as implemented in prototype processing lines at FMI and NR are described.

Acceptance and Test Document (ATD)

The Acceptance and Test Document (ATD) describes the testing protocol for the GlobSnow processing system to be performed during the Qualification Review of the processing system (QR) and the On Site Acceptance Test (OSAT). The tests are conducted in order to determine whether the processing system meets the requirements of the Requirements Baseline (RB) and the Technical Specification (TS) documents.

Design Justification File-v2 (DJF-v2)

The Design Justification File-v2 (DJF-v2) presents the results from the additional algorithm evaluations carried out for the Snow Water Equivalent (SWE) and the Snow Extent (SE) products for the GlobSnow project. It supplements the DJF-v1 published earlier, and will later during the phase 2 be further augmented by a DJF-v3 (describing the last algorithm evaluation results from the remaining investigations).

Technical Specification (TS)

The Technical Specification (TS) gives an overview of the planned GlobSnow processing system and describes the functionality of the processing chains for the end-products. Both the snow extent (SE) and snow water equivalent (SWE) products are described. The technical specification is based on the requirements baseline (RB) and the Design Justification File (DJF) deliverables. Definitions, data formats, metadata and naming conventions for the products are specified. Implementation plan and the schedule for the overall GlobSnow processing system are also documented.

Design Justification File (DJF-v1)

The Design Justification File presents the results of a preliminary analysis and comparison of the main methodological approaches and algorithms required to produce the Snow Water Equivalent (SWE) and the Snow Extent (SE) products for the GlobSnow project. The document presents the evaluations for the different algorithms on different test sites along with the findings of the evaluations.

Ground Data Documentation (GDD)

This Ground Data Documentation (GDD) reports on the available data base and planned activities for the validation and quality control of snow products to be produced in the GlobSnow project, namely maps of snow extent (SE) and maps of snow water equivalent (SWE). An overview is presented on in situ snow measurements available for validation in test regions of Scandinavia, the Alps and Canada. In addition, data from high resolution optical satellite sensors and airborne imagers will be used for comparison and validation of GlobSnow SE maps. An overview is given on the available data base of high resolution images. Finally the validation strategy is presented, and test areas for validation activities are proposed.

Requirements Baseline document (RB)

The Requirements Baseline document reports in the requirements for snow cover products to be generated within the GlobSnow project. The requirements of the ESA SoW, of various climate research initiatives, and of users present at the Requirements Engineering Review (RER) Meeting held on 3 February 2009 in Geneva are reviewed. Background information is provided on the state-of-the-art of snow extent monitoring techniques using optical and SAR sensors, and on the state-of-the-art of snow water equivalent monitoring using microwave radiometry. In addition, the status of snow products with large area coverage, available in various archives around the world, is reviewed, and the availability of suitable satellite data sets for producing global snow cover products of multi-year periods is summarized. Taking into account the user requirements and availability of various data sets, implications for the data base and processing tasks to be performed in the project are discussed.


Finnish Meteorological Institute