1. Introduction¶
1.1. Project background¶
The SEOM Sentinel-3 for Science, Land Study 1: SNOW (referred as ‘S3-SNOW’ in the following) is “to develop, implement and validate algorithms for deriving several key snow parameters from Sentinel 3 optical satellite data, appropriate for addressing ESA’s Cryosphere challenge C3 : “Seasonal snow, lake/river ice and land ice, their effect on the climate system, water resources, energy and carbon cycles: the representa<on of terrestrial cryosphere in land surface, atmosphere and climate models”. See [1] for details.
1.2. Purpose and Scope¶
This document is the User Manual for the SNAP processors written in Java which have been developed in the frame of the S3-SNOW project. Its purpose is to describe in detail how to obtain, install and operate these processors. Also, a comprehensive overview of the related data products (input as well as intermediate and final products) is provided.
The explicit structure of the document is as follows:
1.3. References¶
- Scientific Exploitation of Operational Missions (SEOM) Sentinel-3 for Science, Land Study 1: SNOW: Technical, Management/Administrative, Implementation, Financial and Contractual Proposal. Issue 1, Revision 1, 16 March 2016.
- Kokhanovsky, A., Box, J.E., Lamare, M., Dumont, M., Picard, G., Danne, O., and C. Brockmann: Algorithm Theoretical Basis Document: Snow Properties Retrieval from Sentinel-3. Version 3.0, 30 April 2018.
- Sentinel-3 OLCI User Guide, available at: https://sentinel.esa.int/web/sentinel/user-guides/sentinel-3-olci
- S3-SNOW Project Web Site, available at: http://seom.esa.int/page_project032.php
- The Sentinel Application Platform (SNAP) Web Site, available at: http://step.esa.int/main/toolboxes/snap/
- CoastColour Project Web Site, available at: http://www.coastcolour.org
- OceanColour Project Web Site, available at: http://www.esa-oceancolour-cci.org
- Bourg, L. (2009): MERIS Level 2 Detailed Processing Model. ACRI-ST, Document No. PO-TN-MEL-GS-0006, 15 July 2009.
- Sentinel-3A Product Notice: OLCI Level-2 Ocean Colour, available at: https://www.eumetsat.int/website/wcm/idc/idcplg?IdcService=GET_FILE&dDocName=PDF_S3A_PN_OLCI_L2_REP&RevisionSelectionMethod=LatestReleased&Rendition=Web
1.4. Acronyms and Abbreviations¶
Acronym | Definition |
---|---|
ATBD | Algorithm Theoretical Basis Document |
BC | Brockmann Consult |
BEAM | Basic ERS & Envisat (A)ATSR and Meris Toolbox |
BOA | Bottom-of-atmosphere |
BRR | Bottom-of-atmosphere Rayleigh Reflectance |
CCI | Climate Change Initiative |
CLI | Command Line Interface |
DEM | Digital Elevation Model |
ESA | European Space Agency |
GIMP | Greenland Ice Mapping Project |
GPF | Graph Processing Framework |
GUI | Graphical User Interface |
IdePix | Identification of Pixels |
JDK | Java Development Kit |
MERIS | Medium Resolution Imaging Spectrometer |
NBM | NetBeans Module |
NDSI | Normalised Difference Snow Index |
NetCDF | Network Common Data Form |
OLCI | Ocean and Land Colour Instrument |
PPA | Probability of Photon Absorption |
SEOM | Scientific Exploitation of Operational Missions |
SNAP | Sentinel Application Platform |
SPP | Snow Properties Processor |
SUM | Software User Manual |
TOA | Top Of Atmosphere |