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Medspiration 4Medspiration 4th and Globcolth and Globcolour 1st UCMour 1st UCM
Overview of Progress in Medspiration
Overview of Progress in Medspiration
Ian Robinson, Project manager
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Outline of Medspiration Project Status
Outline of Medspiration Project Status
Background to the Medspiration ProjectOverview of the Medspiration ServiceSummary of OperationRecent DevelopmentsLooking forward
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A brief history of Medspiration
A brief history of Medspiration
2001-2003 GHRSST-PP establishes methodology for complementary use of SST from different sources
GODAE High-Resolution Sea Surface Temperature, Pilot Project GHRSST Data-processing Specification (GDS 1.5) agreed
2003 ESA proposes Medspiration project (part of DUE) GHRSST is the “Key User” to whom ESA responds
The European regional data assembly centre (RDAC) for GHRSST European User requirements document for SST is produced
ITT issued July 2003. Contract confirmed Dec 2003. K/O 1-01-042004-5 Phase 1 of Medspiration
System Requirements Review: 4-5 Mar, 2004 Critical design review: 14th July, 2004 Qualification Review: 24-26 Nov, 2004 Beta Test: 1-28 Feb 2005 Acceptance Review & 1st UCM : 22-23 March 2005
Medspiration ConsortiumNational Oceanography Centre, Southampton (Prime)Ifremer, BrestMeteo-France (CMS, Lannion) CLS , ToulouseCNR, RomeMet.No, OsloVega plc, UK
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The GHRSST-PP ConceptThe GHRSST-PP Concept In principle, the merging and analysis of complementary
satellite and in situ measurements can deliver SST products with enhanced accuracy, spatial and temporal coverage.
DataFusion
QualityControl
User ApplicationsTo facilitate the movement of data
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The Issues GHRSST grappled with
The Issues GHRSST grappled withDifferent types of SST from different sources
Skin Sub-skin Biased to buoy observations (~ 1m depth)
Different sensor types Infra-red limited by cloud but offers fine spatial and radiometric resolution Microwave radiometers penetrate cloud, but have coarser resolution
Different sampling characteristics Polar orbit, wide swath, ~ 1 km resolution (IR) Polar orbit, wide swath, 25 – 60 km resolution (MW) Geostationary orbit, ~ 5 km resolution (IR) Polar orbit, 500 km swath, 1 km resolution, high accuracy & stability (IR)
Natural ocean – atmosphere variability Diurnal variability of SST Clouds Atmospheric aerosol Sea ice etc.
Different SST product formatting
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Tem
pera
ture
(o C
)
Arabian Sea WHOI Mooring Data - Spring 1995(1mm data estimated using Fairall et al. (1996))
Thermal structure of top 5m (from sub-skin to 5m)
(From the PhD of A. Stuart-Menteth
Temperatures at all depths collapse overnight to the same value at dawn
The temperature at dawn (uniform
through the top 5 m) is called the
Foundation Temp. (SSTfnd)
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Near-surface profiles of temperature
Near-surface profiles of temperature
A ship intakemeasures SSTabout here
A buoy measuresSST about here
Infrared radiometers measure skin SST
“Foundation” SST
Microwave radiometers measure sub-skin SST
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The GHRSST solutionThe GHRSST solutionPre-process all L2SST datasets from different sources
Add error statistics if not already present Add quality flags if not present Attach ancillary data that can inform the interpretation
E.g., wind speed, solar radiation, atmospheric aerosol, sea ice Re package as level 2P in standard (netCDF) format Do this in near-real time
Create match-up database (MDB) Pair all available in situ obs. of SST with coincident satellite data
Create a high resolution diagnostic dataset (HR-DDS) Assemble extracts of all L2P data at specific sites for ease of
intercomparisonPerform O.I. analyses of L2P data to create L4 productsProvide archive / distribution suitable for operational usersOversee quality assessment and reanalysis
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Medspiration Data processing tasks
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Ingest input and apply quality
control
L2 SST data from several sensors
In situ SST data
Auxiliary data (wind, etc.)
Generate L2P data products
Generate MDB records
Generate analysed SST L4 products
Disseminate L4 UHR data to EU
users
L2P data
L4 SSTfnd UHR
Disseminate L2P data to GHRSST-
PP GDAC & users
Extract DDS L2P granules
Sensor specific error statistics
Reference data fields
Extract DDS L4 granules
L2P DDS granules
L4 DDS UHR granules
Medspiration Final Archive
MDB records
Medspiration DDS Archive
GHRSSTMDB Archive
CMS
IFREMER
NOCS
Disseminate DDS granules
Distributed data processing chain for Medspiration Phase 1
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Medspiration
Coverage of L2P
products
Medspiration
Coverage of L2P
products
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The Medspiration UHR L4 product
The Medspiration UHR L4 product
Ultra-high resolution (UHR) 2 km grid
Analysis performed once per day
Estimates the foundation SST
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Medspiration Phase 2Medspiration Phase 2Operational delivery of products from 1st June 2005
Extended by at least 18 months in response to User request The same range of products as developed in Phase 1 UHR L4 domain extended west into Atlantic
Extended AATSR L2P product to global coverage In response to the international users through the GHRSST ST Provided since Dec 2005
Developed a number of key operational users Assimilation into ocean models
Met Office, UK FOAM model Analysis products
OSTIA Mersea Scandinavian seas
Growing international use See later talks from users
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Present statusPresent status
Medspiration is operating as planned See presentation by Jean-Francois Piollé, Operations manager
Regular delivery of the basic L2P productsMDB being generated
Being used to check error statistics HR-DDS now has a web interface
Consulted by operational usersL4 products routinely generated
Configuration has been refined Delivery time changed
Analysis now runs at 12.00 on Day N (delivery by 15:00) using data acquired between 06:00 on day N-1 and 06:00 on day N
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Current ongoing Development
Current ongoing Development
Improved interface to MDB (CCN-1): Ifremer Now in place and being used
Improved outreach tools (CCN-1): Boost Technologies Medspiration products within Google Earth
• See Fabrice Collard’s talk
Medea outreach along European coastline E.G German newspapers used the UHR-L4 product during the recent
summer A study of methods for reaching the news media, and a eview of their interst
is being made by Boost technologies• See Fabrice Collard’s talk
Improving the AATSR Error Statistics (CCN-2 recently approved) Use of the MDB by AATSR validation scientist to improve SSES
Confirm the proposed use of the “view difference” data• See talk by Gary Corlett
Target is to establish a means for automatically checking SSES validity
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Sustaining the Medspiration Service
Sustaining the Medspiration ServiceGMES Marine Core Services
Medspiration experience valuable for MCS implementation GHRSST & Medspiration underpin the Sentinel-3 SST planning
Proposals for transitioning the Medspiration service into an element of the MCS
See presentation on Wednesday Needs comments and endorsement of the user community Timing of MCS implementation uncertain: Extension of
Medspiration to Dec 2007 is desirableInteraction – complementarity with GlobCOLOUR
Interchange of ideas and information is already occurring Other mutual benefits to be explored at this meeting
The Importance of Medspiration’s users You continue to be the drivers – tell us what you need The same principle is to be applied within EU MCS activities