APPENDIX D
Summary of GCIP Initial Data Sets Compiled A number of GCIP initial data sets (GIDS) were prepared to provide the data services support during the build-up period before the EOP. The GCIP researchers considered the availability of existing data sets from special experiments and/or reanalysis periods in selecting time periods for these initial data sets.
Preparation of the GIDS started in 1993, and the data sets were compiled for
on-line access by GCIP investigators to the extent that is technically feasible. They
were also packaged in a manner (e.g., use of CD-ROM) for wide distribution
especially to international persons interested in performing initial diagnostic,
evaluation, and modeling studies on GCIP-related topics.
The GIDS-1 data set became available online through the CODIAC system
operated by the UCAR/OFPS in April 1994. A CD-ROM containing a selected
portion of GIDS-1 data was distributed in August 1994. A summary report for this
data set was completed in September 1996.
The GIST data collection period extended from 1 April 1994 to 31 August
1994, with a concentrated effort during the summer season of June, July, and
August. The GIST took place in the LSA-SW which was shown in Figure 7-1. A
listing of the data types to be included in the GIDS-3 data set is given in Table D-1.
The ESOP-95 provided the basis for the fourth initial data set (GIDS-4).
The GIDS-4 contains many of the same data types as was collected during GIST in
1994. The data set was completed in Sepatember 1996 and the data summary
report is in preparation.
A listing ot the data types to be included in the GIDS-4 data set is given in
Table D-2.
D.1. GIDS-1 Winter-Early Spring Season
The first GCIP data set served as both a scientific data set and a GCIP static
data system test that made use of existing experimental and operational capability to
provide a composite observing and model output data set derived from the new
observation and assimilation schemes. The period for this data set is from 1
February to 30 April 1992. This data set includes data from STORM-FEST,
conducted from 1 February to 15 March 1992, and was augmented by hydrological,
geographical, and vegetation data for the Mississippi River basin. An additional six
weeks of atmospheric, hydrological, and land surface data were added from existing
data centers.
D.2. GIDS-2 Abnormal Climate Events
The compilation of this data set was postponed due to lack of resources.
D.3. GIDS-3 Initial Warm Season
The observations and model output data collected during a GCIP Integrated
Systems Test (GIST), provided the third of the initial data sets. Such a data set was
completed in June 1995 and is available on line through the CODIAC system
operated by the UCAR/OFPS. A CD-ROM containing a selected portion of the
GIDS-3 data was distributed in October 1995. The data summary report was
completed in September 1996.
Table D-1. Data Sets Collected During GIST
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DATA SET
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Surface Data
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GIST Hourly Surface Composite *
GIST Hourly Precipitation Composite *
GIST Daily Precipitation Composite *
NWS ASOS Data
FAA AWOS Data
NCDC Surface Aviation Observations (SAO) Data
High Plains Climate Network (HPCN) Data
Oklahoma Mesonet Data
DOE/ARM CART Surface Data
NWS Cooperative Observer Data
Tulsa River Forecast Center (TRFC) Precipitation Data
U.S. Army Corps of Engineer Precipitation and Streamflow Data
USGS Precipitation and Streamflow Data
USDA/ARS Precipitation Data
USDA/Natural Resources Conservation Service Soil Moisture Data
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Upper Air Data
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NWS Upper Air Rawinsonde Data (Micro-ART 6-sec diskettes)
NWS Upper Air Rawinsonde Data (Mandatory/Significant Levels)
DOE/ARM CART Site Upper Air Data
NOAA Demonstration Network Profiler Data
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Satellite Data
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GOES-7 Satellite Imagery (IR, Visible 6.7pm)
GOES-8 Satellite Imagery (preliminary)
NOAA POES AVHRR Imagery
NOAA POES TOVS Data
DMSP OLS Imagery
MDPS SSM/I Data
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Radar Data
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WSR-88D LEVEL II Data
WSI Reflectivity Composite Imagery
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Model Data
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AES/CMC RFE Model
NOAA/NMC Eta Model
NOAA MAPS Model
Oklahoma Local Analysis and Prediction System (OLAPS) Model
GCIP can access global model output produced by AES/CMC,
ECMWF, and NOAA/NMC and hydrology model output produced
by NOAA and shown in Table 1.
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* Contains data from ASOS, AWOS, NCDC SAOs, HPCN, Okalhoma
Mesonet, DOE/ARM CART, NWS Cooperative Observer, TRFC,
USGS, USACE, and USDA.
D.4. GIDS-4 Second Warm Season
The Enhanced Seasonal Observing Period (ESOP) of 1995 (ESOP-95) was
conducted from 1 April 1995 to 30 September 1995 to initiate the ongoing program
of observations in support of the LSA-SW focus and to concentrate the buildup in
the six months prior to the start of the EOP. The ESOP-95 data collection was done
in cooperation with the VORTEX II and a US Weather Research Program
campaign labeled Weather Analysis and Verification Experiment (WAVE) conducted
in the first three months of the ESOP-95 period.
Table D-2. Data Sets Contained in the GIDS-4 Database
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IN-SITU DATA
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Surface
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GIDS-4 Hourly Surface Composite
GIDS-4 Hourly Precipitation Composite
GIDS-4 Daily Precipitation Composite
NWS Automated Surface Observing System (ASOS) Data
FAA Automated Weather Observing System (AWOS) Data
NCDC Surface Aviation Observations (SAO) Data
High Plains Climate Network (HPCN) Data
Oklahoma Mesonet Data
DOE/ARM CART Surface Data
NWS Cooperative Observer Data
Arkansas-Red River Basin Forecast Center (ABRFC) Precipitation Data
U.S. Army Corps of Engineer (USACE) Precipitation and Streamflow Data
USGS Precipitation and Streamflow Data
USDA/Agricultural Research Service (ARS) Surface and Soil Moisture Data
USGS Reservoir Data
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Upper Air Data
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NWS Upper Rawinsonde Data (6 sec vertical levels)
NWS Upper Rawinsonde Data (mandatory/significant Levels)
DOE/ARM CART Site Upper Air Data
NOAA Demonstration Network Profiler Data
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Radar Data
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WSR-88D Level II Data
WSI Reflectivity Composite Imagery
ABRFC Stage III WSR-88D Data (including daily GIF imagery)
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Land Characterization Data
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Vegetation/Data Products
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SATELLITE DATA
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GOES-8 Satellite Imagery (IR, Visible 6.7 micron)
NOAA POES AVHRR Imagery
NOAA POES TOVS Data
DMSP OLS Imagery
DMSP SSM/I Data
NOAA Weekly Northern Hemisphere Snow Cover Analysis
ASOS Cloud Observations
CLAVR Clouds
Satellite Radiation Datasets
Vegetation Index
Little Washita River Basin Soils and Land Cover
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Model Data
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CMC RFE Model Data
Eta Model Data (3 hourly)
Eta Model Initialization Analyses GIF Imagery (daily: 12 UTC)
Eta Enhanced Model Output Profiles
NOAA/FSL MAPS Model Data (hourly)
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* Contains data from ASOS, AWOS, NCDC SAOs, HPCN, Okalhoma
Mesonet, DOE/ARM CART, NWS Cooperative Observer, ABRFC,
USGS, USACE, and USDA/ARS.
GCIP Reference Data Set
The USGS supported the preparation of a CD-ROM containing a number of
different data sets which is expected to have wide use among GCIP investigators.
One of the major criteria for including a specific type of data on the CD-ROM was
that the data are expected to change little if any during the next two to three years.
A CD-ROM containing the GCIP Reference Data Set (GREDS) was published in
August 1995. A description of the data sets on this CD-ROM is included as part of
the documentation for each CD-ROM. The list of data sets for the GCIP Reference
Data Sets CD-ROM is given in Table D-3.