The Activities of Andrea Kaiser-Weiss GHRSST Project Officer, based at NCEO, University of Reading, UK

The Activities of

Andrea Kaiser-WeissGHRSST Project Officer,

based at NCEO, University of Reading, UK

Group for High Resolution Sea Surface Temperature

http://www.ghrsst.org

1. Why Sea Surface Temperature (SST) and why GHRSST (Group for High Resolution SST)

1. GHRSST Data Flow2. GHRSST in the International Landscape3. Planned Future4. Summary

2

Outline



Why SST : Storms

Kerry A. Emanuel (April 2010)

3



Why SST: Rainfall variability

Giannini, Biasutti, Held and Sobel, Climatic Change, 2008

Rainfall EOF’s

Long-term change

Correlated SST

4



Why: Climate change

1961-1990 average: 13.97 CSource : BoM graphics from HadCRUT3v data

Global ocean heat content in the upper 700 m. Climate Change Indicators in the United States, p 36, EPA 430-R-10-007, April 2010.

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Motivation : OceanographySurface Trend (ºC/10 yrs) 1950-2010Source : BoM graphics from HadCRUT3v data

SST related science in Oceanography :

- air/sea flux- currents, eddies, fronts- AMO- trends in all of the above

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http://www.ghrsst.org7

• Ocean modelling and forecasting• NWP (hurricanes, seasonal-interannual

rainfall variability)• Climate variability and change• Ecosystems (habitats, aquaculture)• Fisheries• Navy acoustic signal processing

Why SST ?



TRMMTMI

POESAVHRR

MSG-SEVIRIImager

ENVISATAATSR

GOESImager

AQUAAMSR-EMODIS

MTSAT-1RImager

METOP

Credit: C. Gentemann8

Why GHRSST ?



Why GHRSST ?

GHRSST IX (2008): “To develop and nurture cooperation and progress at the world scale in the subject area of satellite Sea Surface Temperature”



• Polar infrared has high accuracy & spatial resolution • Geostationary infrared has high temporal resolution• Microwave Polar orbiting has all-weather capability

GHRSST Builds on EO complementarities…

DataMerging

• In situ data provide reality in all weather conditions



Andrea Kaiser-WeissET-OOFS-3 Tokyo 8th Oct. 2010

Definitions of SST

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SSTfnd sea surface foundation temperature

SSTskin sea surface skin temperature

SSTsubskin sea surface subskin temperature

SSTdepth sea water temperature at depth z, e.g.,SST2m

SSTint interface sea surface temperature

De

pth

10m1 mm

1 m

10 m

SST – SST10m (K)0 0.5 1.0 1.5 2.0 2.5 3.0

Daytime, lig

ht winds

Nig

ht-

tim

e,

or

str

on

g

win

ds



GHRSST Data Flow

13



L3 (Europe)

Combining satellite data: MyOcean



US: for example MUR analysisby Mike Chin at JPL



User tools and Services

• NAIAD and dataminer

• IFREMER and JPL• SQUAM• GMPE• HRDDS• WMS• G1 OurOcean• DataCasting



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



3. GHRSST in the international landscape

GHRSST = 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, ESA CCI, MyOcean, Australia, Japan,

New: South Korea, Brazil, Canada, China, India .

Links to CEOS, GCOS, WMO, JCOMM, WCRP, OceanView, ET-OOFS, …



Planned Future for GHRSST:

CEOS SST Virtual Constellation (SST-VC)



Summary1. GHRSST mission: to provide SST to operational

users and a to a massive science community

2. GHRSST priority research: uncertainty estimates, Sensor Specific Error Statistics

3. Research issues: variability in the upper ten metres cloud detection, long-term stability

4. Users: which SST should they be provided with ?

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GHRSSToperational reliable

mature



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]

Documents

The Activities of Andrea Kaiser-Weiss GHRSST Project Officer, based at NCEO, University of Reading, UK