Description
Many observing stations report various hydrological variables such as accumulated precipitation and river levels, etc.The MADIS hydrological surface dataset includes reports from observing networks run by different "providers". Through the MADIS API, the user can select only a subset of the total by specifying which providers to include or exclude.
Geographic Coverage
The geographic coverage for automated networks and for the CoCoRaHS mesonet includes data from these states: CO, IN, KS, MO, NM, PA, TX, VA, WY. The GLOBE mesonet has global data.Data Schedule
Data arrive on a continuous, asynchronous schedule, and the current and previous hour's data are processed every 5 minutes. The data are segmented into hourly files, with the mesonet file for hour HH containing data for HH00 through HH59. The most complete data for a given hour is available a little after 2 hours following the file time. The user should also understand that the mesonet data can be delayed. The lag time of reports from automated stations (lag = time available from MADIS - observation time) ranges from about 8 to 45 minutes, and can sometimes be longer. The lag time for daily observations taken manually can be days or weeks.Data that arrive after 2 hours following the time of the observation are processed in a "data recovery" mode, where once a day batch processing is performed to reprocess data that are 35 day's, 7 day's old, and 1 day old. These data are available with all communications methods supported by MADIS except for ldm.
Volume
Typical daily volume for all MADIS datasets can be seen here.
Links to the various mesonets collected by MADIS.
Back to MADIS Home Page