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GPM Ground Validation Met One Rain Gauge Pairs IFloodS Table of Contents
The GPM Ground Validation Met One Rain Gauge Pairs IFloodS data set was collected using Met One Model 380 tipping bucket precipitation gauges at 25 sites in Iowa during the Iowa Flood Studies (IFloodS) ground measurement campaign in 2013. The data set contains quality controlled reformatted rain data recorded in millimeters at a temporal resolution of 1 second and cubic spline interpolated rain rates recorded in millimeters per hour. The information is available in .txt text files. The following example shows how to cite the use of this data set in a publication. For more information, please see our Citing GHRC DAAC and Data page. Campaign The Iowa Flood Studies (IFloodS) was a ground measurement campaign that took place in eastern Iowa from May 1 to June 15, 2013. The goals of the campaign were to collect detailed measurements of precipitation at the Earth's surface using ground instruments and advanced weather radars and, simultaneously, collect data from satellites passing overhead. The ground instruments characterized precipitation -- the size and shape of raindrops, the physics of ice and liquid particles throughout the cloud and below as it falls, temperature, air moisture, and distribution of different size droplets -- to improve rainfall estimates from the satellites, and in particular the algorithms that interpret raw data for the upcoming Global Precipitation Measurement (GPM) mission's Core Observatory satellite, which launches in 2014. The rain gauges were located at 25 sites in central to northeastern Iowa. The geographic locations of each rain gauge pair (gauges A & B) are:
Further details on the IFloodS campaign are available at http://gpm.nsstc.nasa.gov/ifloods. Additional information about the Iowa Flood Center can be found at http://iowafloodcenter.org. Information on the Global Precipitation Measurement (GPM) mission is available at http://pmm.nasa.gov/GPM. The Model 380 precipitation gauge, manufactured by Met One Instruments Inc., is a tipping bucket rain gauge which measures the amount of fallen precipitation. The gauge has a 12 inch (30.5 cm) diameter catchment funnel that directs precipitation to a tipping bucket assembly. When .01 inch (.254 mm) of precipitation is collected, the tipping bucket assembly tips, draining the collection and activating a mercury switch for recording data. More detailed information on the Met One Model 380 Precipitation Gauge is available at http://www.metone.com/documents/370 - 380 Precipitation Gauges.pdf. InvestigatorsWalter A. Petersen David B. Wolff The GPM Ground Validation Met One Rain Gauge Pairs IFloodS data set consists of .txt text files. The files are named with the following convention:
where,
The files contain measurements of fallen precipitation at recorded points in time and cubic spline interpolated rain rates during the study period. The GPM Ground Validation Met One Rain Gauge Pairs IFloodS data set is comprised of .txt text files. Wang, J., B. L. Fisher, and D. B. Wolff, 2008: Estimating rain rates from tipping-bucket rain gauge measurements. J. Atmos. Oceanic Technol., 25, 43-56. doi: 10.1175/2007JTECHA895.1 Wang, J., and D. B. Wolff, 2012: Evaluation of TRMM rain estimates using ground measurements over central Florida. J. Appl. Meteor. Climatol., 51, 926-940. doi: 10.1175/JAMC-D-11-080.1 Wang, J., and D. B. Wolff, 2010: Evaluation of TRMM ground-validation radar-rain errors using rain gauge measurements. J. Appl. Meteor. Climatol., 49, 310-24. doi: 10.1175/2009JAMC2264.1 Contact InformationTo order these data or for further information, please contact:
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