GLOBTEMPERATURE

an ESA DUE initiative

 

International LST and Emissivity Group

The International Land Surface Temperature and Emissivity Working Group (ILSTE-WG) aims to provide advice and recommendations to the wider scientific and user communities on the best practices for retrieval, validation and exploitation of Land Surface Temperature (LST), Ice Surface Temperature (IST), Lake Surface Water Temperature (LSWT), and Land Surface Emissivity (LSE).

More information: http://ilste-wg.org/

Period of report: December 2015

The main activities in this reporting period can be summarised as follows:

  • Provisional dates for UCM#4 in Lisbon have been agreed (28th – 29th June) – this will be combined with an internal progress meeting
  • Full year-by-year processing of GlobTemperature “value-added” MODIS product with full uncertainty breakdown completed both for Aqua and Terra
  • User Case Studies - all on target in terms of timing
  • Merged product:
    • Co-location files of MTSAT and GOES with MODIS/Terra and MODIS/Aqua are ready for the production of the merged product;
    • Revisiting bias correction methodologies and fine-tuning the computation toward the most robust results possible;
  • CDR:
    • Retrieval uncertainties added to the processing chain
  • Numerous end-Phase deliverables being completed and reviewed

Period of report: November 2015

The main activities in this reporting period can be summarised as follows:

  • Progress Meeting #4 held on 27-Nov-2015 at ACRI-ST, Toulouse
  • End-Phase 2 deliverables all in progress / review
  • Reconfirmation from GCOS Steering Committee that we can go forward with LST requirement definitions for LST. GCOS will have another meeting in spring for preparing the next Implementation Plan where LST will be in as a new ECV.
  • Year-by-year processing of GlobTemperature “value-added” MODIS product with full uncertainty breakdown completed for Aqua and near-completed for Terra
  • User Case Studies - all on target in terms of schedule
  • CCRR - test dataset about to be uploaded online. Blind submission dataset will be available in early January; CCRR participation opportunity extended until April
  • Production of MTSAT and GOES single-sensor LST datasets for period ready for release onto Data
    Portal

Period of report: October 2015

The main activities in this reporting period can be summarised as follows:

  • Most of demands raised during the UCM#3 implemented in the test server – migration to the operational portal delayed and now planned by mid-November
  • Development of algorithms for GlobTemperature “value-added” MODIS product with uncertainty breakdown consistent with the ATSR approach now complete
    • Processing in progress with subsequent upload to Data Portal
  • Ongoing refinements being made to the SSMI/ I AMSR-E algorithms, with the objective of improving the retrieval performances
  • Final report for UCS#2 on evapo-transpiration has been circulated
  • Start of MTSAT single-sensor database production and debugging
  • Visit of DG to IPMA: review of validation and inter-comparison results, uncertainty budget computation, revision of methodologies

Period of report: September 2015

The main activities in this reporting period can be summarised as follows:

  • Submission and acceptance of the 3rd GlobTemperature Newsletter
  • 1-page proposed ECV LST Definition sent to G. Schaepmann-Strub (liaison to the GCOS committee) following feedback received from the ILSTE-WG during and after the Steering Committee Telecon
  • Most of demands raised during the UCM#3 implemented in the test server – migration to the operational portal planned by mid-October
  • GlobTemperature “value-added” MODIS product with uncertainty breakdown consistent with the ATSR approach in advanced development
  • Performed satellite-satellite intercomparisons between AATSR LST and SEVIRI LST over GBB station.
  • Setting up the process chain for the production of MTSAT and GOES single-sensor databases according to the deliverable specifications.

Period of report: July-August 2015

The main activities in this reporting period can be summarised as follows:

  • Finalised definition of LST sent to GCOS for feedback prior to telecon in September
  • Most of demands raised during the UCM#3 implemented in the test server – migration to the operational portal planned in late September
  • Production of in-situ LST data files for Georg-von-Neumayer station, Antarctica; ARM's Southern
  • Great Plains (SGP) and North Slope of Alaska (NSA) stations
  • Match-up of multi-sensor data over the Gobabeb station area for period 2009-2011 for intercomparison
  • Development of consistent approach to uncertainty estimation for all single-sensor products (and applicable to Merged Product) – this has been developed for ATSR and MODIS
  • A further Microwave Product (developed by T. Holmes) is in the process of being acquired for linking to from the Data Portal