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: 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

Period of report: June 2015

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

  • Highly successful UCM#3 held at Reading 11 – 12 June:
    • 65 participants
    • 8 oral presentations
    • 30 poster presentations
    • Interactive sessions on uncertainties, and breakout sessions on user requirements
  • ILSTE-WG 3rd General Meeting, 12 June, Reading
  • Cloud Clearing Round Robin went live on 1st June with all data available from the data portal:
    • 10 participants are registered to take part and we are providing support with data usage as required
    • Analysis of MODIS LST vs. SURFRAD station LST

Period of report: May 2015

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

  • First draft of the ILSTE-WG website has been made with a few first items populated; this will be first presented at the ILSTE-WG General Meeting on 12th June
  • Final preparations for UCM#3; current number of registrations
  • New functionalities of the data portal presented during PM3
    • All accepted Selection and extraction of data according to geographical criteria
    • Possibility to record areas of interest and to label them for later use
    • Repository to allow users to share their tools
    • These will be presented to the user community at UCM#3
  • Production and analysis of matchup files in harmonised GlobTemperature format for satellite-retrieved MODIS LST and station LST
  • The CCRR has been prepared and kicked off on June 1st
  • DEL-22 report and data uploaded onto the GlobTemperature Data Portal page for the CCRR

Period of report: April 2015

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

  • ILSTE-WG to lead a draft note to the GCOS TOPC detailing the definitions of LST, LSE and cross-cutting benefits to other ECVs for potential recommendation by TOPC of reclassification of LST to an ECV
  • UCM#3 preparations ongoing:
    • Registrations currently number 65
    • UCM#3 abstracts reviewed and acceptance confirmations sent out for oral and poster presentations
    • First draft programme produced
  • Internal tests carried out on new functionalities for the Data Portal:
    • Selection and extraction of data according to geographical criteria
    • Possibility to record areas of interest and to label them for later use
    • Repository to allow users to share their tools
  • Full Terra and Aqua MODIS Level-2 from start of missions to end-2014 have now been reprocessed into GlobTemperature harmonised format
  • Started development and production of match-up files in harmonised GlobTemperature format for satellite-retrieved MODIS LST and SURFRAD station LST
  • Computation of the kernel model coefficients of the angular correction for the entire SEVIRI disk for 2011