TIGGE Archive Status at NCAR THORPEX Workshop and 6th GIFS-TIGGE Working Group Meetings WMO Headquarters Geneva 22-26 September 2008 Steven Worley Doug.

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TIGGE Archive Status at NCAR THORPEX Workshop and 6th GIFS-TIGGE Working Group Meetings WMO Headquarters Geneva September 2008 Steven Worley Doug Schuster

TIGGE Archive Status at NCAR Update on archive content Phase 1 completion TC archive Advertisement Metrics

Update on archive content Changes Since Pretoria –More fields from NCEP prepared by NCDC 69) –NCAR installed new servers to receive and send the data System now very stable

Phase I Completion Get Forecast Data NCAR online file archive Selection options Center(s) Date File type (sl, pl, pt, pv) Initialization time Forecast length Download Options Point and click download through browser We prepare a script for user to run on local machine User and password encrypted ‘wget’ commands User customized files Selection options Same as for files, plus Parameter Regridding Spatial subsets Formats, GRIB2, netCDF Delayed ModeReal Time Two User Interfaces

Phase I Completion NEW Direct Download Option Simple file and directory structure; 16 days duration No special discovery interface; find the files you need Select files, we provide script to run on local machine User and password encrypted ‘wget’ commands Web address, dss.ucar.edu/datasets/ds330.2/data/

TC Archive NEW Direct Download Only Simple directory system, center/year/month Full period of record (earliest ECMWF ) Web address, dss.ucar.edu/datasets/ds330.3 z_tigge_c_babj_ _GEFS_glob_prod_etctr_nwp.xml CMA: 5 August 2008, 12Z Update Frequency 12 hours Size 6GB

Advertisement EOS, Transactions, American Geophysical Union, Vol. 89, Number 36, September 2, 2008 –Title: Improving High-Impact Weather Forecasts –Included an online supplement NCAR and CISL home page with Hurricane Gustav animation Objective: boost visibility in research community –Did it help?

Metrics NCAR TIGGE Portal (Oct Sep 15, 2008) Subset requests Direct File Download (Nov Sep 15, 2008) YearVol (GB)% USA#Req%USA#UU% USA YearVol (GB)%USA# Files%USA#UU%USA

Metrics NCAR TIGGE RDA File Download (Includes Specialist Staged Requests) (Oct Sep 7, 2008) 2007: 98% to 1 Japanese user (Specialist Staged Request) 2008: 99% to 1 Taiwanese user (Specialist Staged Request) NCAR MSS Download (NCAR Internal Users, Oct Sep 7, 2008) YearVol (GB)%USA# Files%USA#UU%USA YearVol (GB)%USA# Files%USA#UU%USA

Metrics NCAR TC Direct Download (RDA) (Aug 1, Sep 15, 2008) Total TIGGE Data Downloaded (Oct Sep 15, 2008) YearVol (GB)%USA# Files%USA#UU%USA YearVol (GB)%USA# Files%USA#UU%USA

End Basic Facts for NCAR TIGGE Archive, 9/’08 22 forecast cycles/forecast day 1,641,702 GRIB-2 fields/forecast day 245 GB/forecast day 3037 archive files created/forecast day ~16 forecast days online on web –45,592 Files –3.8 TB –3037 archive files aged off to MSS/day

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