Melbourne, May 20071

Agenda

Review

Issues

GHRSST-8 Session-8Reanalysis and Climate Data

Records

Kenneth S. CaseyKenneth S. CaseyNOAA National Oceanographic Data CenterNOAA National Oceanographic Data Center

May 2007May 2007

Gary Wick, RapporteurGary Wick, Rapporteur

Melbourne, May 20072

Agenda

Review

Issues

AgendaAgenda

Time Agenda item Session leaders

Session 8. Reanalyses and Climate Data Records

14:00 RANnual Review: Ken Casey

14:20 The Analysis of Long Time-Series of SST from the AVHRR and ATSR Sensors: David Llewellyn-Jones

14:40 SST Data Continuity: The impact of a data gap between AATSR and SLSTR on operational services: Gary Corlett

15:00 Plenary discussion

Chair: Ken Casey Rapporteur: G Wick

15:20 Tea 15:40-16:40

GHRSST Reanalysis Discussion Chair: Ken Casey Rapporteur: G Wick

Quick review of Reanalysis Goals Quick review of Reanalysis Goals

DLJ and Gary presentationsDLJ and Gary presentations

Related GCOS SST/SI activities (Nick Rayner)Related GCOS SST/SI activities (Nick Rayner)

Review of Individual Reprocessing Efforts Review of Individual Reprocessing Efforts

DiscussionDiscussion

Melbourne, May 20073

Agenda

Review

Issues

RANnual Review: Goals of RANRANnual Review: Goals of RAN

Create delayed mode products with Create delayed mode products with higher accuracy and consistency - CDRshigher accuracy and consistency - CDRs

Link to longer term climate recordsLink to longer term climate records

Enable a sustained reprocessing Enable a sustained reprocessing capabilitycapability

Melbourne, May 20074

Agenda

Review

Issues

RANnual Review: Current TargetsRANnual Review: Current Targets

Spatial: Follow real-time L4 grid ~ 9 km Spatial: Follow real-time L4 grid ~ 9 km (higher only if feasible)(higher only if feasible)

Temporal: Once per dayTemporal: Once per day

Types: L4 SSTfnd (plus 4 diurnal offsets)Types: L4 SSTfnd (plus 4 diurnal offsets)

Error Stats: Bias and Standard Deviation Error Stats: Bias and Standard Deviation at each output grid pointat each output grid point

Data Format: netCDF with CF metadataData Format: netCDF with CF metadata

SSTfnd

(Modified from A. Stuart-Menteth)

Melbourne, May 20075

Agenda

Review

Issues

RANnual Review: Revised TargetsRANnual Review: Revised Targets

Spatial: Goal 4-5 km globally with 1-2 km Spatial: Goal 4-5 km globally with 1-2 km regional productsregional products

Temporal: Once per dayTemporal: Once per day

Types: L4 SSTfnd (plus 4 diurnal offsets)Types: L4 SSTfnd (plus 4 diurnal offsets)

Error Stats: Bias and Standard Deviation Error Stats: Bias and Standard Deviation at each output grid pointat each output grid point

Data Format: netCDF with CF metadataData Format: netCDF with CF metadata

SSTfnd

(Modified from A. Stuart-Menteth)

Melbourne, May 20076

Agenda

Review

Issues

DLJ and Gary PresentationsDLJ and Gary Presentations

Melbourne, May 20077

Agenda

Review

Issues

Remaining AgendaRemaining Agenda

Connection with GCOS SST/SI WG and Connection with GCOS SST/SI WG and intercomparisonintercomparison

Review of Reprocessing ChartReview of Reprocessing Chart

DiscussionDiscussion

Melbourne, May 20078

Agenda

Review

Issues

GCOS SST intercomp diagnosticsGCOS SST intercomp diagnostics

Initial phase:Initial phase:– Time series of global and hemispheric anomalies Time series of global and hemispheric anomalies – Time-latitude sections of anomaliesTime-latitude sections of anomalies– Fields of standard deviation, linear trend and lag1 Fields of standard deviation, linear trend and lag1

correlation correlation

Follow on phase:Follow on phase:– Maps of RMS differences between fieldsMaps of RMS differences between fields– Time averaged difference mapsTime averaged difference maps– Time series for selected regions and a small selection of Time series for selected regions and a small selection of

GHRSST diagnostic data set sitesGHRSST diagnostic data set sites– Spatial autocorrelations.Spatial autocorrelations.

Done on Weekly, 1-degree and Monthly, 5-Done on Weekly, 1-degree and Monthly, 5-degree basisdegree basis

Examine relationships to Jim’s metrics classes and Examine relationships to Jim’s metrics classes and suggestions for GHRSST L4 analysissuggestions for GHRSST L4 analysis

Melbourne, May 20079

Agenda

Review

Issues

GCOS Initial Intercomp ProductsGCOS Initial Intercomp Products

Kaplan et alKaplan et al

HadISST1HadISST1

NOCS SST analysisNOCS SST analysis

ERSSTERSST

AVHRR Pathfinder V5AVHRR Pathfinder V5

OISSTv2OISSTv2

Daily OI SSTDaily OI SST

OSTIAOSTIA

Plus input data, including ICOADS and HadSST2

Host Website: GHRSST-PP Reanalysis Long Term Host Website: GHRSST-PP Reanalysis Long Term Stewardship and Reanalysis Facility: Stewardship and Reanalysis Facility:

http://ghrsst.nodc.noaa.gov/http://ghrsst.nodc.noaa.gov/

Melbourne, May 200710

Agenda

Review

Issues

Nick: What’s in it for us?Nick: What’s in it for us?

Let’s feed the GHRSST Reanalysis data Let’s feed the GHRSST Reanalysis data sets into this process from the startsets into this process from the start– Addresses compatibility with the climate recordAddresses compatibility with the climate record

GCOS WG “seal of approval” on outputsGCOS WG “seal of approval” on outputs

WG benefits from the infrastructureWG benefits from the infrastructure

Melbourne, May 200711

Agenda

Review

Issues

Review of Individual ReprocessingsReview of Individual Reprocessings

NASA MEaSURE ProposalNASA MEaSURE Proposal

GOES ReprocessingsGOES Reprocessings

TMI - AMSRE?TMI - AMSRE?

Status of fast (A)ATSR reformattingStatus of fast (A)ATSR reformatting

Status of (A)ATSR Reanalysis for Status of (A)ATSR Reanalysis for Climate (ARC) ProjectClimate (ARC) Project

Other activities?Other activities?

Melbourne, May 200712

Agenda

Review

Issues

Ongoing and Future Activities Ongoing and Future Activities

1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

(A)ATSR

GOES

SEVIRI

AMSRE

MODIS

AVHRR

TMI

Melbourne, May 200713

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Issues

Ongoing and Future Activities - G8 Rev. Ongoing and Future Activities - G8 Rev.

1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

(A)ATSR

GOES

SEVIRI

AMSRE

MODIS

AVHRR

TMI

Andy Harris and Eileen Maturi w/ NCDC

Version 2 in Spring 2008, ARC Version 3 in 2009

NASA MEaSURE Proposal - Cornillon et al. - possible start in Fall 2007

NASA MEaSURE

NOAA Scientific Data Stewardship - Evans, Kilpatrick, and Casey - beginning July 2007

Melbourne, May 200714

Agenda

Review

Issues

Issues for DiscussionIssues for Discussion

What “qualifies” as a “GHRSST” What “qualifies” as a “GHRSST” reanalysis?reanalysis?Ensemble means and intercomparison Ensemble means and intercomparison efforts (e.g., Jiping Xie’s talk)efforts (e.g., Jiping Xie’s talk)More emphasis on individual sensor More emphasis on individual sensor reprocessing efforts and inter-sensor reprocessing efforts and inter-sensor calibration calibration Metrics Metrics L3P and L4L3P and L4Other items?Other items?