Last modified on Mar 18, 2024 15:05

Contributors : Lin Gilbert (University of Leeds), Sebastian B. Simonsen (Technical University of Denmark), Jan Wuite (ENVEO IT GmbH)

Issued by: Technical University of Denmark / Sebastian B. Simonsen

Issued Date: 04/05/2021

Ref: C3S_312b_Lot4.D2.IS.3_v3.0_GMB_Product_Quality_Assurance_Document_i1.0

Official reference number service contract: 2018/C3S_312b_Lot4_EODC/SC2

Table of Contents

History of modifications

Issue	Date	Description of modification	Chapters / Sections
i0.1	17/01/2021	Modified based on C3S_312b_Lot4.D2.IS.1_v2.0_202001_Product_Quality_Assurance_Document_v1.0	SS
i1.0	04/05/2021	Revised all URL's to point to new CCI project websites. Revised Related documents. Revised Scope and Exec Summary. Revised links to sections of CCI PVIR reports	SS/RK

List of datasets covered by this document

Deliverable ID	Product title	Product type (CDR, ICDR)	Version number	Delivery date
D3.IS.5	Gravimetric mass balance	CDR	3.0	31/01/2021

Acronyms

Acronym	Definition
AIS	Antarctic Ice Sheet
ATM	Airborne Topographic Mapper
CCI	Climate Change Initiative
CDR	Climate Data Record
DEM	Digital Elevation Model
DTU	Technical University of Denmark
EPSG	European Petroleum Survey Group map projection database
GCOS	Global Climate Observing System
GMB	Gravimetric Mass Balance
GPS	Global Positioning System
GrIS	Greenland Ice Sheet
ICDR	Interim Climate Data Record
IMAU	Institute for Marine and Atmospheric Research at the University of Utrecht
InSAR	Interferometric Synthetic Aperture Radar
IV	Ice Velocity
MEaSUREs	Making Earth System Data Records for Use in Research Environments
NASA	National Aeronautics and Space Administration
NSIDC	National Snow and Ice Data Center
OIB	Operation IceBridge
PROMICE	Programme for Monitoring of the Greenland Ice Sheet (Danish)
RMSE	Root Mean Square Error
SEC	Surface Elevation Change
SWIR	Short Wavelength Infra-Red
S1	Sentinel-1
TSX	TerraSAR-X
WGS84	World Geodetic System 1984

Scope of the document

This document is the Product Quality Assurance Document for Gravimetric Mass Balance (GMB) as part of the Copernicus Ice Sheets and Ice Shelves service. It describes the validated datasets and the methods used for validation.

Executive summary

The service addresses three essential climate variables (ECVs) by providing four separate products.

Ice velocity is given for Greenland in product D3.IS.4
Gravimetric mass balance is given for Greenland and Antarctica in product D3.IS.5
Surface elevation change is given for:
- Antarctica (AIS) in product D3.IS.6.1
- Greenland (GrIS) in product D3.IS.6.2

This document deals with gravimetric mass balance. Validation is not performed on this brokered dataset, as it has been performed previously and documented. Relevant documentation is available at:

1. Validated products

The GMB products are brokered from the two ice sheet CCI products and relevant documentation is available at:

AIS: Product Validation and Intercomparison Report (PVIR), version 1.3, available at: https://climate.esa.int/media/documents/ST-UL-ESA-AISCCI-PVIR-001_v1.3a.pdf
GrIS: Product Validation and Intercomparison Report (PVIR), version 1.0, available at: https://climate.esa.int/media/documents/ST-DTU-ESA-GISCCI-PVIR-001_v1.0.pdf

2. Description of validating datasets

The relevant documentation is available at:

AIS: Please see section 5.1 of the AIS PVIR (https://climate.esa.int/media/documents/ST-UL-ESA-AISCCI-PVIR-001_v1.3a.pdf)
GrIS: Please see section 4 of the GrIS AIS (https://climate.esa.int/media/documents/ST-DTU-ESA-GISCCI-PVIR-001_v1.0.pdf)

3. Description of product validation methodology

The relevant documentation is available at:

AIS: Please see section 5.2 of the AIS PVIR (https://climate.esa.int/media/documents/ST-UL-ESA-AISCCI-PVIR-001_v1.3a.pdf)
GrIS: Please see section 4.1 of the GrIS AIS (https://climate.esa.int/media/documents/ST-DTU-ESA-GISCCI-PVIR-001_v1.0.pdf)

4. Summary of validation results

The relevant documentation is available at:

AIS: Please see section 5.3 of the AIS PVIR (https://climate.esa.int/media/documents/ST-UL-ESA-AISCCI-PVIR-001_v1.3a.pdf)
GrIS: Please see section 4.2 of the GrIS AIS (https://climate.esa.int/media/documents/ST-DTU-ESA-GISCCI-PVIR-001_v1.0.pdf)

_{This document has been produced in the context of the Copernicus Climate Change Service (C3S).}

_{The activities leading to these results have been contracted by the European Centre for Medium-Range Weather Forecasts, operator of C3S on behalf of the European Union (Delegation Agreement signed on 11/11/2014 and Contribution Agreement signed on 22/07/2021). All information in this document is provided "as is" and no guarantee or warranty is given that the information is fit for any particular purpose.}

_{The users thereof use the information at their sole risk and liability. For the avoidance of all doubt , the European Commission and the European Centre for Medium - Range Weather Forecasts have no liability in respect of this document, which is merely representing the author's view.}

Reference ID	Document
D1	Product Quality Assessment Report D2.IS.4-v3.0

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History of modifications

List of datasets covered by this document

Related documents

Acronyms

Scope of the document

Executive summary

1. Validated products

2. Description of validating datasets

3. Description of product validation methodology

4. Summary of validation results

Related articles

Space shortcuts

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GMB Version 3.0: Product Quality Assurance Document (PQAD)

History of modifications

List of datasets covered by this document

Related documents

Acronyms

Scope of the document

Executive summary

1. Validated products

2. Description of validating datasets

3. Description of product validation methodology

4. Summary of validation results

Related articles