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

myoceanservice@ifremer.fr )– 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 ghrsst-edinburgh2011@reading.ac.uk

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