1. GDWG Agenda Item THREDDS Directory Structure Updates
Masaya Takahashi, JMA
CMA, CNES, EUMETSAT, ISRO, IMD, JAXA, JMA, KMA, NASA, NIST, NOAA, ROSHYDROMET, USGS, WMO

2. Overview and Purpose Overview Purpose of this presentation
Forthcoming new GSICS products in 2015
A) GEO-LEO-VISNIR (multiple calibration methods blended product)
B) GSICS Prime correction for GEO-LEO-IR (multiple references blended product)
To store these products on the THREDDS server, directory structures must be changed
Purpose of this presentation
To introduce the GRWG proposal
To discuss the feasibility, and accept the proposal or provide alternative solutions to GRWG

3. GRWG requirements for updating the THREDDS directory structure for new GSICS products
A) GEO-LEO-VISNIR
File naming: follows existing GEO-LEO-IR GSCIS Correction
New algorithm type: GEOLEOVISNIR (GEO-LEO visible and near infrared)
New reference instrument: Aqua/MODIS
B) GSICS Prime Correction for GEO-LEO-IR
File naming: follows existing GEO-LEO-IR, but WITHOUT REFERENCE NAME
Big impact on the THREDDS directory structure (next slide)
easy to implement in the THRDDS. Just to add new directories for the new products.
MSG2 SEVIRI calibrated against Aqua MODIS

4. GRWG proposal on updating the THREDDS directory structure for GSICS Prime Correction
GRWG proposal is available on:
New directory for the Prime Correction
forthcoming GEO-LEO-IR Prime Correction
W_XX-EUMETSAT-Darmstadt,SATCAL+NRTC+GEOLEOVISNIR,MSG2+SEVIRI_C_EUMG_ _preop_01.nc
forthcoming GEO-LEO-VISNIR Prime Correction
New directory for individual references (= existing GEO-LEO-IR GSICS Corrections)
MSG2 SEVIRI calibrated against Aqua MODIS
forthcoming GEO-LEO-VISNIR GSICS Correction
The same structures as those for NRTC

5. GDWG discussion on the details on the proposed solution (to be updated in the discussion)
The GDWG accepted/rejected the GRWG proposal because…
Resources Needed:
Man Days Effort:
Prepare a documentation to update the THREDDS directory configuration – 1 week.
Implementation on the CMA/EUMETSAT/NOAA THREDDS servers – 2 weeks.
HW & SW Procurements: not applicable
Input Data Acquisition Effort: new GSICS products (GEO-LEO-VISNIR, GSICS Prime Correction)
Proposed Time Scale:
GEO-LEO-VISNIR product and GEO-LEO-IR Prime Correction will become available in 2015, so this change should be done by the 2016 GSICS annual meeting
Deliverables:
New THREDDS configuration
Priority of the Task: High – by the next GSCIS annual meeting

6. Agenda item summary; assign action identifier, make EP recommendations and propose a lead for the action (to be updated in the discussion)
Action Identifier: GDWG_15.XX EUMETSAT/NOAA/CMA to update THREDDS directory configuration for new GSICS products.
Substantial effort if required by the GDWG, GDWG chair should inform this activity to GSICS Executive Panel, and ask for feedback regarding:
Should GDWG resources be used to update the THREDDS directory configuration.
The GDWG estimates 3 weeks (3 weeks for EUMETSAT, 2 weeks for CMA and NOAA) of resources is needed to support this action.
Identify the Working Group Member Taking the Lead on this Action:
EUMETSAT
The EP is invited to comment on this if the action is to be performed.

7. End of Presentation: Thank you for your attention
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