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(A)ATSR archive(A)ATSR archiveat theat the
NERC Earth Observation Data CentreNERC Earth Observation Data Centre
Matt Pritchard, Jack Abolins, Brian Maddison & Chris Matt Pritchard, Jack Abolins, Brian Maddison & Chris MutlowMutlow
NEODC / CCLRC Rutherford Appleton LaboratoryNEODC / CCLRC Rutherford Appleton Laboratory
(A)ATSR Archive at the NEODC
What is the NEODC?
• NERC Data NERC Data CentresCentres– Data Data
managementmanagement– CurationCuration– Support for UK Support for UK
EO communityEO community
(A)ATSR Archive at the NEODC
NEODC Datasets
• Commercial satellite imageryCommercial satellite imagery– LANDSAT, SPOT, …LANDSAT, SPOT, …
• NERC ARSFNERC ARSF– ATM, CASI, LiDAR, Digital ATM, CASI, LiDAR, Digital
Aerial PhotographyAerial Photography
• NEXTMap BritainNEXTMap Britain– IfSAR 5m terrain model of GBIfSAR 5m terrain model of GB
• ATSR UBT archiveATSR UBT archive– ATSR-1, ATSR-2ATSR-1, ATSR-2
• NEODC interfaceNEODC interface• ESA SSEESA SSE
services.eoportal.orgservices.eoportal.org
• (A)ATSR Archive(A)ATSR Archive– 3 missions, 1 format3 missions, 1 format
(ENVISAT)(ENVISAT)
(A)ATSR Archive at the NEODC
NEODC Datasets
• Commercial satellite imageryCommercial satellite imagery– LANDSAT, SPOT, …LANDSAT, SPOT, …
• NERC ARSFNERC ARSF– ATM, CASI, LiDAR, Digital ATM, CASI, LiDAR, Digital
Aerial PhotographyAerial Photography
• NEXTMap BritainNEXTMap Britain– IfSAR 5m terrain model of GBIfSAR 5m terrain model of GB
• ATSR UBT archiveATSR UBT archive– ATSR-1, ATSR-2ATSR-1, ATSR-2
• NEODC interfaceNEODC interface• ESA SSEESA SSE
services.eoportal.orgservices.eoportal.org
• (A)ATSR Archive(A)ATSR Archive– 3 missions, 1 format3 missions, 1 format
(ENVISAT)(ENVISAT)
(A)ATSR Archive at the NEODC
NEODC Datasets
• Commercial satellite imageryCommercial satellite imagery– LANDSAT, SPOT, …LANDSAT, SPOT, …
• NERC ARSFNERC ARSF– ATM, CASI, LiDAR, Digital ATM, CASI, LiDAR, Digital
Aerial PhotographyAerial Photography
• NEXTMap BritainNEXTMap Britain– IfSAR 5m terrain model of GBIfSAR 5m terrain model of GB
• ATSR UBT archiveATSR UBT archive– ATSR-1, ATSR-2ATSR-1, ATSR-2
• NEODC interfaceNEODC interface• ESA SSEESA SSE
services.eoportal.orgservices.eoportal.org
• (A)ATSR Archive(A)ATSR Archive– 3 missions, 1 format3 missions, 1 format
(ENVISAT)(ENVISAT)
(A)ATSR Archive at the NEODC
NEODC Datasets
• Commercial satellite imageryCommercial satellite imagery– LANDSAT, SPOT, …LANDSAT, SPOT, …
• NERC ARSFNERC ARSF– ATM, CASI, LiDAR, Digital ATM, CASI, LiDAR, Digital
Aerial PhotographyAerial Photography
• NEXTMap BritainNEXTMap Britain– IfSAR 5m terrain model of GBIfSAR 5m terrain model of GB
• ATSR UBT archiveATSR UBT archive– ATSR-1, ATSR-2ATSR-1, ATSR-2
• NEODC interfaceNEODC interface• ESA SSEESA SSE
services.eoportal.orgservices.eoportal.org
• (A)ATSR Archive(A)ATSR Archive– 3 missions, 1 format3 missions, 1 format
(ENVISAT)(ENVISAT)
(A)ATSR Archive at the NEODC
(A)ATSR Archive - background
• Project backgroundProject background– Hadley Centre Climate Prediction Hadley Centre Climate Prediction
ProgrammeProgramme•Requirement for common-format set of Requirement for common-format set of
products covering 15 yearsproducts covering 15 years• Inputs to climate change researchInputs to climate change research
– NERC / UK EO communityNERC / UK EO community•Dedicated (A)ATSR Archive for researchDedicated (A)ATSR Archive for research
– RAL involvement with (A)ATSRRAL involvement with (A)ATSR•Design / build / consultation / operations / Design / build / consultation / operations /
calibration / validation / data management / calibration / validation / data management / community supportcommunity support
(A)ATSR Archive at the NEODC
(A)ATSR Archive - overview
UBT Level 2archive
Level 1barchive
Archive Product
Processor
AATSRL2
ATSR-2 L1b
ATSR-1 L1b
ATSR-2 UBT
ATSR-1 UBT ATSR-
1 L2
ATSR-2 L2
ATSR-1
METEO
ATSR-2
METEO
AATSR L1b
AATSR L2
AATSR METE
O
Archive Product
Processor
ingest
AATSRL1b
ingest
(A)ATSR Archive at the NEODC
Products from (A)ATSR
• Products from (A)ATSRProducts from (A)ATSRProductProduct DescriptionDescription ATSR-1ATSR-1 ATSR-2ATSR-2 AATSRAATSR
ATS_TOA_1ATS_TOA_1PP
GBTR at full resolutionGBTR at full resolution **ATS_NR__2ATS_NR__2PP
GST at full resolutionGST at full resolution **ATS_AR__2PATS_AR__2P AST at 0.5AST at 0.5° & 10 arcmin resolution° & 10 arcmin resolution **ATS_MET_2ATS_MET_2PP
METEO product: AST & ABT, 10 arc minMETEO product: AST & ABT, 10 arc min ATS_AST_BATS_AST_BPP
Browse product 4 x 4 km resolutionBrowse product 4 x 4 km resolution jpegjpeg Preview imagePreview image
*already online*already online
(A)ATSR Archive at the NEODC
Delivery mechanism
• Storage structureStorage structure– 80 Terabyte archive80 Terabyte archive– 1 file structure:1 file structure:
• mission/YY/MM/DD/productmission/YY/MM/DD/product
• Methods (self-service access)Methods (self-service access)– FTPFTP– HTTP (Data browser)HTTP (Data browser)
• Searchable metadata catalogueSearchable metadata catalogue– map interfacemap interface– Metadata inspectionMetadata inspection– Preview imagesPreview images
(A)ATSR Archive at the NEODC
Delivery mechanism
• Storage structureStorage structure– 80 Terabyte archive80 Terabyte archive– 1 file structure:1 file structure:
• mission/YY/MM/DD/productmission/YY/MM/DD/product
• Methods (self-service access)Methods (self-service access)– FTPFTP– HTTP (Data browser)HTTP (Data browser)
• Searchable metadata catalogueSearchable metadata catalogue– map interfacemap interface– Metadata inspectionMetadata inspection– Preview imagesPreview images
(A)ATSR Archive at the NEODC
Delivery mechanism
• Storage structureStorage structure– 80 Terabyte archive80 Terabyte archive– 1 file structure:1 file structure:
• mission/YY/MM/DD/productmission/YY/MM/DD/product
• Methods (self-service access)Methods (self-service access)– FTPFTP– HTTP (Data browser)HTTP (Data browser)
• Searchable metadata catalogueSearchable metadata catalogue– Example from existing ATSR-1/2 UBT archive Example from existing ATSR-1/2 UBT archive
interfaceinterface– Map interfaceMap interface– Metadata inspectionMetadata inspection– Preview imagesPreview images
(A)ATSR Archive at the NEODC
Archive availability
•NEODC (A)ATSR archiveNEODC (A)ATSR archive–Dedicated facility for UK usersDedicated facility for UK users
(NERC & Cat-1)(NERC & Cat-1)– neodc@rl.ac.ukneodc@rl.ac.uk
•ESAESA–Non-UK usersNon-UK users
– eohelp@esa.inteohelp@esa.int
(A)ATSR Archive at the NEODC
AATSR Products
Level 2 averaged (ATS_AR__2P)Level 2 averaged (ATS_AR__2P)
(A)ATSR Archive at the NEODC
Online archive
• Current coverage: Level 1b productsCurrent coverage: Level 1b products
(A)ATSR Archive at the NEODC
Online archive
• Current coverage: Level 2 full-resolution productsCurrent coverage: Level 2 full-resolution products
(A)ATSR Archive at the NEODC
Online archive
• Current Coverage: Level 2 averaged productsCurrent Coverage: Level 2 averaged products
(A)ATSR Archive at the NEODC
Archive Product Processor
The Archive Product Processor
(APP)
CfE STEP
ERS Mission Orbit & Phase Information
Set of sequential SADIST-2 UBTs from the NEODC Archive
Ungridded Orbit ProductATS_TOA_UP.En
ATSR-2 Reflectance Calibration Tables
State-Vector &Time-correlation
Envisat-Style ATSR Auxiliary Data
Envisat-styleATSR-1/ATSR-2 L1B
ATS_TOA_1P.En
Consolidate for Envisat::
· Stitches together SADIST-2 frames· Removes tape-to-tape overlaps· Prepares Envisat MPH contents· Generates Orbit/Time data· Generates min/max sensor temps· Removes blanking-pulse negation· Preserves blanking-pulse info· Generates processing/QA log
SADIST-2 To Envisat ProcessorAATSR Prototype Processor modules for:
· Geolocation (Courtesy ESA/GMV)· Gridding (Courtesy ESA/GMV)· Cosmetic Filling· Land/Sea Flagging· Cloud-flagging
and also must:· Switch between ATSR-1 and ATSR-2 Aux
data· Transfer ungridded data into PP
structures · Use the PP's "Output_GBTR" module with
ATSR-1 and ATSR-2 switches
Orbit Min/Max Temperatures
(A)ATSR Archive at the NEODC
Archive benefits
• Processing facilityProcessing facility– Generation of product extractsGeneration of product extracts– Processing against entire archiveProcessing against entire archive
•Projects e.g. Projects e.g. ATSR-ClimateATSR-Climate•Reprocessing / evaluation datasetsReprocessing / evaluation datasets
• Supply of validation dataSupply of validation data• Delivery methodsDelivery methods
– OGC WMS / WCS ?OGC WMS / WCS ?
• Replacement of current products with Replacement of current products with outputs of ESA AATSR reprocessingoutputs of ESA AATSR reprocessing
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