The Global Energy and Water Cycle Experiment (GEWEX) Continental-scale International Project (GCIP) Initial Data Set (GIDS-1) data set contains meteorological and hydrological data from the west-central Mississippi River basin. GIDS-1 is a combination of operational and research data over a 3-month period, 01 February 1992 through 30 ... April 1992. The data was collected from over 6,000 stations in the GIDS-1 area (i.e., approximately 85W to 106W longitude and 30N to 45N latitude). The station information dataset provided as part of GIDS-1 defines each station in the GIDS-1 data with station location, name, frequency of observation, etc.
The purpose of GIDS-1 was to create a prototype data set that is similar to future data sets collected during the GCIP Enhanced Observing Period (1995-2000). Data from the STORM-FEST Field Project was selected as a nucleus to build GIDS-1. STORM-FEST provided a data set that: (1) included atmospheric and hydrological data obtained in the center of the GCIP area; (2) occurred during a hydrologically important time of year (i.e. late winter/early spring); (3) included routine operational data as well as special research observing platforms for a 6 week period; and (4) provided similar quality controlled surface and upper air composite data sets as required by GCIP. An additional 6 weeks of operational data was added to the STORM-FEST data to: (1) increase the collection period of GIDS-1 into the spring snowmelt/runoff period; and (2) provide a direct comparison of 6 weeks of intensive/special observations to 6 weeks of routine observations for evaluating future GCIP observational enhancements.
The United States Geological Survey (USGS) Earth Resources Observation System (EROS) Data Center Land Cover (vegetation) imagery covers the conterminous United States. The Land Cover imagery contains monthly composites for a five month period encompassing the entire GIDS-1 time period.
The National Centers for Environmental Prediction (NCEP) and Climate Analysis Center (CAC) Upper Air Daily Weather Map Series imagery covers most of the northern hemisphere at the 500 mb level. The surface map imagery covers the conterminous United States and parts of Canada and Mexico. The NMC/CAC surface and upper air map imagery contains daily maps valid 1200 UTC for the entire GIDS-1 time period.
The Tennessee Valley Authority (TVA) Dam Discharge dataset contains data from approximately 45 sites in Tennessee, Kentucky, North Carolina and surrounding states. This dataset covers a subset of the complete GIDS-1 area. The TVA Dam Discharge dataset contains data values of hourly turbine discharge and total discharge reported for the complete GIDS-1 time period. No additional quality control (QC) was performed on this dataset by the UCAR/Office of Field Project Support (UCAR/OFPS).
The Tennessee Valley Authority (TVA) stream flow dataset contains stream flow data from 14 TVA stations in the GIDS-1 area of interest. The dataset covers the complete GIDS-1 time period.
The United States Geological Survey (USGS) stream flow dataset contains stream flow data from 971 USGS stations in the GIDS-1 area of interest. The dataset covers the complete GIDS-1 time period.
The Daily Precipitation Composite is composed of data from thousands of stations from several sources (i.e., Daily totals computed from GIDS-1 Hourly Precipitation Composite, United States Geological Survey (USGS) daily precipitation, Tennessee Valley Authority (TVA) daily precipitation, and the daily precipitation extracted from the NCDC Cooperative data). Data from these sources were merged and quality controlled to form this precipitation composite. This composite contains data for the GIDS-1 time period, and for the GIDS-1 area of interest, only.
The Hourly Precipitation Composite was formed from three data sources (i.e., GIDS-1 area subset of the STORM-FEST Hourly Precipitation Composite data, NCDC Hourly Precipitation data, and the precipitation extracted from the GIDS-1 Hourly Surface Composite). Data from the three sources (over a thousand stations) were merged and quality controlled to form this precipitation composite. This composite contains data for the GIDS-1 time period, and for the GIDS-1 area of interest, only.
The Hourly Surface Composite is composed of data from several sources (i.e., National Climatic Data Center Surface Aviation Observations (NCDC SAO), High Plains Climate Network, Illinois Climate Network, NOAA/Environmental Research Laboratory (ERL) PROFS Mesonet, Wind Profiler Demonstration Network surface data, and GIDS-1 area extract from STORM-FEST Hourly Surface Composite). Data from these sources (over a 1,000 stations) were merged and quality controlled to form this surface composite. The Hourly Surface Composite contains data for the GIDS-1 time period, and for the GIDS-1 area of interest, only.
The Geostationary Operational Environmental Satellite (GOES-7) Infrared (IR) imagery covers the central and western United States at 8 km resolution. The GOES-7 IR imagery contains daily imagery for the GIDS-1 time period.
The Illinois Soil Moisture data set contains data (approximately 37 to 43 latitude and 88 to 91 longitude), which is data collected from approximately twenty-two sites in the state of Illinois. The data covers the GIDS-1 time period and is provided in the same format in which it was obtained. No additional quality control (QC) was performed on this dataset by the UCAR/Office of Field Project Support (UCAR/OFPS).
The NCDC Surface Specials data set contains only the NCDC Surface Aviation Observation (SAO) "Special" observation surface data. Data for the GEWEX Continental-scale International Project (GCIP) Initial Dataset One (GIDS-1) area of interest and for a portion of the GIDS-1 time period (16 March 1992 through 30 April 1992) are contained is this dataset. The NCDC SAO "Nominal" hourly data for the GIDS-1 area and time period are included in the Hourly Surface Composite. This NCDC SAO "specials" dataset contains data from hundreds of stations and is identical in quality control processing, and similar in format, etc. to the data in the Hourly Surface Composite.
The NOAA/WPL (Wave Propogation Laboratory) operated 5 boundary layer profilers (915 MHz) in the STORM-FEST boundary layer network near Seneca, KS. They were equipped with RASS and provided vertical profiles of winds and temperature at 30 minute intervals. Winds were measured at 100 m resolution gates from 0.2 - 3.1 km and at 400 m resolution from 0.4 - 5 km. Temperatures from RASS were measured up to about 2 km.
The WSI Corporation NOWrad product radar reflectivity composite imagery covers a sector (approximately 6 degrees latitude by 12 degrees longitude) over the Central United States. The NOWrad sector was generally fixed over the STORM-FEST domain but moved slightly depending upon areas of active weather. The NOWrad imagery contains daily composites valid 1200 UTC (whenever available) for the first half of the GIDS-1 time period (01 February 1992 through 15 March 1992).
The Final Sounding Composite data set consists of STORM-FEST data collected from all surface and aircraft based sites (NWS, AES, CLASS, US Military, Picket Fence, L2D2 and USAF). All data sets were converted to NCAR CLASS format and inter-polated to 10 mb pressure levels. Data were then quality controlled.