The Activities of
NASA SST meeting Seattle 9th Nov 2010
Andrea Kaiser-WeissGHRSST Project Officer,
based at NCEO, University of Reading, UK since August 2010
Group for High Resolution Sea Surface Temperature
http://www.ghrsst.orgNASA SST meeting Seattle 9-12 Nov 2010
1. Pre-requisites of data merging and how addressed in GHRSST
2. Related European activities3. GHRSST in the international
landscape4. Summary
2
Outline
Group for High Resolution Sea Surface Temperature
http://www.ghrsst.orgNASA SST meeting Seattle 9-12 Nov 2010 3
Pre-requisites of Data merging Standardisation of formats (GDS2) – progress
of GDS2 implementation (DAS-TAG) .
Data merging requires quality flags and error estimates : SSES (ST-VAL) and bias removal
Physical approach requires developments of retrieval methods (EarWig) .
Data merging requires handling diurnal variability (DVWG) .
Special problems in High latitudes (HL-TAG) .
Group for High Resolution Sea Surface Temperature
http://www.ghrsst.org
GHRSST working and task groups Data
Assembly and
Systems
DAS-TAG
Reanalysis RAN-
TAG
High Latitude
HL-TAG
Inter-compariso
ns IC-TAG
Applications and User
Services AUS-TAG
Lake Surface Water Temp.
LSWT-WG
Rescue & Reprocessing
Historical AVHRR Archives R2HA2-WG
Diurnal Variability DV-WG
Estimation
MethodsEARWiG
SSES and
Validation
STVAL
Group for High Resolution Sea Surface Temperature
http://www.ghrsst.org
GHRSST Organisation
International GHRSST Science Team
User Requirements for high resolution Sea Surface Temperature data products and services from operational, scientific, and climate communities.
International
Stakeholder Advisory
Council
GPO : GHRSST
International Project Office
Data Assembly
and Systems DAS-TAG
Diurnal Variability DV-WG
Reanalysis RAN-
TAG
High Latitude HL-TAG
Estimation
MethodsEARWiG
Inter-comparisons IC-TAG
Applications and User
Services AUS-TAG
Lake Surface Water Temp.
LSWT-WG
CEOS-VC
Rescue & Reprocessing
Historical AVHRR Archives R2HA2-
WG
SSES and Validatio
n STVAL-
TAG
CEOS SST
chairs
Group for High Resolution Sea Surface Temperature
http://www.ghrsst.orgNASA SST meeting Seattle 9-12 Nov 2010
Donlon et al, 2007
GHRSST R/GTS framework
6
Group for High Resolution Sea Surface Temperature
http://www.ghrsst.orgNASA SST meeting Seattle 9-12 Nov 2010
1. Pre-requisites of data merging and how addressed in GHRSST
2. Related European activities- ERNESST - CCI (see Chris)- OSI-SAF- MyOcean
3. GHRSST in the international landscape4. Summary
7
Outline
Group for High Resolution Sea Surface Temperature
http://www.ghrsst.orgNASA SST meeting Seattle 9-12 Nov 2010
European Research Network for Estimation from Space of Surface Temperature:
• Retrieval techniques• Clouds• Diurnal variability• Integrating different satellites and in situ
Interaction with NASA-SST wanted
8
ERNESST
Group for High Resolution Sea Surface Temperature
http://www.ghrsst.org
NEWS (from Pierre Le Borgne)
Short term: The new Geostationary OSI SAF SST chain is expected to be operational in January 2011– Cloud mask control flagging dubious pixels– A bias correction method is being implemented– Files are GDS V2 compliant– Delivery to Beta Users in November 2010– Experimental products (OE SST, sdi, DW, fronts)
available progressively in 2011 Longer term: Preparation of the OSI SAF CDOP2
(next contract with EUMETSAT): 2012-2017– Bias correction/OE applied to METOP/AVHRR– All SEVIRI data reprocessed with the new chain
Group for High Resolution Sea Surface Temperature
http://www.ghrsst.org
Analyzed SST(OSTIA)
ECMWF profiles + RTTOV
Simulated BTs
Operational algorithmApplied on simulations
Retrieved (predicted) SST
Retrieved – analyzed SST =Predicted algorithm error(used as a correction term)
Error simulation
Group for High Resolution Sea Surface Temperature
http://www.ghrsst.org
Le Borgne, P., Roquet, H. & C.J. Merchant, Estimation of SST from the SEVIRI, improved using numerical weather prediction, Remote Sensing of Environment, 115, 55–65, 2011.
Before: After:
Cause: atmospheric water vapour
Biases improved with the new algorithm
Group for High Resolution Sea Surface Temperature
http://www.ghrsst.orgNASA SST meeting Seattle 9-12 Nov 2010
L3 (Europe)
News from MyOcean
Group for High Resolution Sea Surface Temperature
http://www.ghrsst.org
MyOcean QC/Validation MyO V1 (Dec 2010, see
[email protected] )– Minimum QC/validation service
• black list (as is)• L2P minimum list QC and validation• All L3 + L4• HR/DDSV1
Issues - MyO V1 Outputs will be delivered in
preGDS2 format- MyO will have to cope with inputs in GDS1
and GDS2 formats: Any provider please send us your transition to GDS2 planning, Thanks!
Group for High Resolution Sea Surface Temperature
http://www.ghrsst.orgNASA SST meeting Seattle 9-12 Nov 2010
L4
Group for High Resolution Sea Surface Temperature
http://www.ghrsst.org
US: for example MUR analysisby Mike Chin at JPL
Group for High Resolution Sea Surface Temperature
http://www.ghrsst.orgNASA SST meeting Seattle 9-12 Nov 2010
1. Pre-requisites of data merging and how addressed in GHRSST
2. Related European activities3. GHRSST in the international landscape
- CEOS-VC- User communities
4. Summary
17
Outline
Group for High Resolution Sea Surface Temperature
http://www.ghrsst.org
3. GHRSST in the international landscape
GHRSST = independent, and well linked to the national and international space agencies, Met-offices, and major research institutes (e.g. Navoceano, NOAA)
GHRSST interaction with NASA SST Science Team, ERNESST, ESA CCI, MyOcean, Australia, Japan, and others.
Links to GCOS, CEOS, JCOMM, WCRP, OceanView, ET-OOFS, DBCP, Argo
Group for High Resolution Sea Surface Temperature
http://www.ghrsst.org
GHRSST serving as CEOS SST-VC
– Improve coordination, consolidation and development of the collective EO SST capability
– Improve SST products, services and their dissemination with better user engagement
– Avoid duplication of existing activities by using the well established GHRSST as the prime implementation mechanism.
Group for High Resolution Sea Surface Temperature
http://www.ghrsst.org
GHRSST Applications and User support (AUS-TAG)
User communities: 1.SST related research (ocean/atmosphere/coupling)2.Ocean modelling and forecasting3.NWP (hurricanes, seasonal-interannual rainfall variability)4.Climate variability and change5.Ecosystems (habitats, marine agriculture)6.Fisheries7.Navy acoustic signal processing
Group for High Resolution Sea Surface Temperature
http://www.ghrsst.org
Users and GHRSST’s responsibility
The Advisory committee noted that there are now more users than ever before and advised GHRSST that care was needed to serve this user community well.
GHRSST is now focussing on documentation, products and services, which are easy to access, useful and well maintained
Group for High Resolution Sea Surface Temperature
http://www.ghrsst.orgNASA SST meeting Seattle 9-12 Nov 2010
User tools and Services
• NAIAD and dataminer
• IFREMER and JPL• SQUAM• GMPE• HRDDS• WMS• G1 OurOcean• DataCasting
Group for High Resolution Sea Surface Temperature
http://www.ghrsst.org
GHRSST XII Science Team meeting 2011
Edinburgh, Scotland, 27 June - 01 July
Special emphasis is on facilitating the exchange between data users and producers.
Please indicate your interest by sending an email to [email protected]
Group for High Resolution Sea Surface Temperature
http://www.ghrsst.org
Summary
GHRSST has strong overlap with NASA SST
(ongoing and new) and collaboration is highly desirable.
GHRSST will work towards community consensus on SST issues.
NASA SST meeting Seattle 9-12 Nov 2010