GIDS-1 USGS Stream Flow Dataset
     
     
     1.0  General Description
     
          The United States Geological Survey (USGS) stream flow dataset
     is one of three hydrological datasets provided as part of the GEWEX
     Continental-scale International Project (GCIP) Initial Dataset One (GIDS-
     1). This dataset contains stream flow data from 971 USGS stations in the
     GIDS-1 area of interest. The GIDS-1 area is approximately 85W to 106W
     longitude and 30N to 45N latitude. The dataset covers the complete GIDS-
     1 time period from 01 February 1992 through 30 April 1992. 
     
     2.0  Detailed Data Description
     
          The USGS stream flow dataset format contains three metadata
     parameters followed by three data parameters. The metadata parameters
     identify the station and time at which the data was collected. Each record
     contains one month's data. The three data parameters are repeated once for
     each UTC day (0000 to 2300). All records contain data for 31 days
     regardless of the actual number of days in a month. Months with less
     than 31 days are padded with missing values (e.g., -999.99). All records
     are identical in length. The stream flow values are reported in cubic 
     meters per second and are 24 hour averages. There are no stage values in 
     this dataset, so the stage values are shown as missing. The hour of 
     observation is the beginning UTC hour for the 24 hour period for which the
     stream flow value is valid. No additional quality control (QC) was 
     performed on this dataset by the UCAR/Office of Field Project Support 
     (UCAR/OFPS). The table below details the data parameters in each record, 
     including a C programming language format description.
     
     Parameters               Units (C format)

     Date of Observation      UTC Year/month ('%-7s ')
     Network Identifier       Abbreviation of platform name ('%-10s')
     Station Identifier       Network Dependent ('%-10s')
     Stream flow (24hr ave)   Cubic meters per second  (' %8.2f ')
     Stage                    Meters (always -999.99) ('%7.2f ')
     Hour of Observation      Beginning UTC hour for 24 hour period
                              for which stream flow and stage values
                              are valid.  ('%2d')
     
     2.1  Data Remarks
     
          There are no stage values in this dataset.
     
     2.2  Sample Data
     
          The following is a sample record of USGS stream flow data. A
     complete month of data per station are presented in each record. Unlike
     this example, there are no carriage returns in the data. See section
     2.0 for the exact format specifications.
     
     1992/04 USGS      03322420    5494.08 -999.99  6  5947.20 -999.99  6 
     6088.80 -999.99  6  6088.80 -999.99  6  -999.99 -999.99  6  5805.60
     -999.99  5  5182.56 -999.99  5  4729.44 -999.99  5  4163.04 -999.99  5 
     3681.60 -999.99  5  3426.72 -999.99  5  3370.08 -999.99  5  3256.80
     -999.99  5  3086.88 -999.99  5  2916.96 -999.99  5  2775.36 -999.99  5 
     2832.00 -999.99  5  3001.92 -999.99  5  3171.8 4 -999.99  5  3823.20
     -999.99  5  4304.64 -999.99  5  4587.84 -999.99  5  4899.36 -999.99  5 
     4899.36 -999.99  5  4984.32 -999.99  5  5409.12 -999.99  5  6541.92
     -999.99  5  6541.92 -999.99  5  6088.80 -999.99  5  4163.04 -999.99  5 
     -999.99 -999.99  5
     
     3.0  Quality Control Processing
     
          No additional quality control (QC) was performed on this dataset
     by the UCAR/Office of Field Project Support (UCAR/OFPS).
     
     4.0  References
     
          For additional station information, refer to the station list
     provided as a seperate dataset in CODIAC.