The
links on this page contain the Data Collection Platform (DCP) definitions
as they exist in HADS.
The pages exist on a state-by-state basis. All pages are updated Monday
through Friday at 4:35pm Eastern time.
Within each page is the complete HADS definition for each site and each page is a file
of plain ASCII text ... suitable for downloading/saving locally and for printing.
Each site definition is one line, or one record within the file. Each field within the
definition is spearated by a vertical bar "|".
The fields represent the following:
GOES NESDIS ID | NWSLI | DCP Owner | State Location
| Hydrologic Service Area | Latitude | Longitude |
Inital Daily Transmission Time (UTC) | DCP Transmission Interval
(Minutes) |
DCP Location Name | Decoding Modes |
Up to 20 Sets of Physical Element Information |
Decoding mode can be S for Selftimed data only, R for Random data only,
or B for Both selftimed and random data.
Latitudeand longitude are expressed in degrees minutes seconds.
Parameter information are the SHEF Physical Element (PE) codes, the recorded time intervals
(in minutes) of the data, the offset time for the specific PE code
and any Base Elevation or adjustment value applied to the specific PE.
Example:
A site up-links 15 minute HP data at 0127 UTC and every 4 hours, and a Base
Elevation adjustment has been defined at 500 feet.
Its' SHEF parameterfields would be |HP|15|12|500.00
... meaning to offset the time of the observed data time back 12 minutes to the
nearest quater hour to indicate that the most recent value of HP from this
site was at 0115 UTC and that all other HP values are separated by 15 minute
periods. Additionally, an adjustment of 500.00 feet will be added to the
observed data value.
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