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Wallops Precipitation Science Research Facility
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IPMSI Precipitation Validation

Increasing Participation of Minority Serving Institutions in Earth Science
Division Surface-Based Measurement Networks

In 2021, NASA Heaquarters (HQ) issued a Research Opportunities in Space and Earth Sciences (ROSES) opportunity to address "Increasing Participation of Minority Serving Institutions (MSI) in Earth Science Division Surface-Based Measurement Networks". The goal was to provide ground-based instruments to MSI in order to better engage these communities in NASA Earth Science Division (ESD) Science, Technology, Engineering and Math (STEM) activities. A total of 22 proposals were submitted, from which 15 were selected for funding.

The call was to provide one or more ground-based platforms consisting of AERONET, PANDORA and Precipitation Stations. The Precipitation Stations, which we discuss here, are being provided by the GPM Ground Validation program, and consists of a pair of rain gauges and for some a Parsivel Disdrometer. Of the 15 selected sites, eight chose the precipitation systems. The gauge-only systems are referred to as Platforms for In situ Estimation of Rainfall Systems (PIERS), while the gauge + disdrometer systems are referred to as PIERS+.

Precipitation Validation Network

The map above illustrates the selected MSIs. The institutions that requested PIERS systems are denoted with yellow circles and the sites denoted by the yellow squares denotes PIERS+ systems.

Links to PIERS and PIERS+ pages

  • University of Arizona
  • Hampton University (CBBT)
  • Lehman College
  • Prarie View A&M
  • Texas A&M - Corpus Christi
  • Texas Tech University
  • Univ. of Maryland, Baltimore County
  • Xavier University
    •
  • PIERS0033
  • PIERS0038 +
  • PIERS0029
  • PIERS0034 +, PIERS0035 +, PIERS0036 +
  • PIERS0030
  • PIERS0032
  • PIERS0037 +
  • PIERS0031
    		•

    Daily and Monthly Plots for IPMSI Gauges

    Hourly/Daily Rain Plot Daily/Monthly Rain Plot
    (Started from 11/2022)
    Hourly/Daily Rain Plot
    Daily/Monthly Rain Plot

    Current IPMSI Daily Gauge Totals

    Current Report Date: 06/23/2026
    Report generated 06/23/2026 @ 18:40:09 Local (06/23/2026 @ 22:40:09 UTC)

    GaugeID Site Name Packets Mean Voltage Mean RSSI # Tips_A # Tips_B Accum_A [in] Accum_A [mm] Accum_B [in] Accum_B [mm] Bias [%]
    PIERS0001 WFF Pad 90/96 13.240000 -79.000000 147 142 1.470000 37.340000 1.420000 36.070000 3.400000
    PIERS0002 Haywards_Lott 90/96 13.250000 -86.110000 196 201 1.960000 49.780000 2.010000 51.050000 -2.550000
    PIERS0003 William_St_Well 90/96 13.050000 -95.330000 160 157 1.600000 40.640000 1.570000 39.880000 1.880000
    PIERS0004 Somerset_Rd 90/96 12.970000 -82.910000 162 160 1.620000 41.150000 1.600000 40.640000 1.230000
    PIERS0005 American_Legion 90/96 13.200000 -71.530000 160 164 1.600000 40.640000 1.640000 41.660000 -2.500000
    PIERS0006 Doc_Johnson 90/96 13.220000 -83.270000 153 154 1.530000 38.860000 1.540000 39.120000 -0.650000
    PIERS0007 LeVecque 88/96 13.190000 -84.820000 167 175 1.670000 42.420000 1.750000 44.450000 -4.790000
    PIERS0008 Lowes 90/96 13.270000 -99.510000 159 171 1.590000 40.390000 1.710000 43.430000 -7.550000
    PIERS0011 Pocomoke_MS 90/96 12.880000 -84.240000 145 145 1.450000 36.830000 1.450000 36.830000 0.000000
    PIERS0012 Pocomoke_HS 90/96 13.270000 -92.470000 153 152 1.530000 38.860000 1.520000 38.610000 0.650000
    PIERS0018 Stockton Volunteer Fire Company 90/96 13.240000 -101.670000 145 152 1.450000 36.830000 1.520000 38.610000 -4.830000
    PIERS0021 How Sweet it is 90/96 13.240000 -92.160000 166 162 1.660000 42.160000 1.620000 41.150000 2.410000
    PIERS0024 Silva_Rd 90/96 13.170000 -86.760000 168 166 1.680000 42.670000 1.660000 42.160000 1.190000
    PIERS0026 UMES 90/96 12.800000 -72.560000 182 177 1.820000 46.230000 1.770000 44.960000 2.750000
    PIERS0027 WFF Pad 90/96 12.300000 -85.930000 208 136 2.080000 52.830000 1.360000 34.540000 34.620000
    PIERS0028 UCONN - GAIL site 90/96 12.300000 -93.620000 0 138 0.000000 0.000000 1.380000 35.050000 0.000000
    PIERS0029 Lehman College, NYC 90/96 13.090000 -57.000000 73 72 0.730000 18.540000 0.720000 18.290000 1.370000
    PIERS0030 Texas A&M University - Corpus Christi 90/96 11.360000 -77.690000 0 0 0.000000 0.000000 0.000000 0.000000 0.000000
    PIERS0031 Xavier University 90/96 13.040000 -112.380000 0 0 0.000000 0.000000 0.000000 0.000000 0.000000
    PIERS0032 Texas Tech University 90/96 13.300000 -112.070000 0 0 0.000000 0.000000 0.000000 0.000000 0.000000
    PIERS0033 University of Arizona 90/96 13.210000 -109.270000 19 5 0.190000 4.830000 0.050000 1.270000 73.680000
    PIERS0034 Prairie View A&M University 90/96 12.790000 -87.020000 0 0 0.000000 0.000000 0.000000 0.000000 0.000000
    PIERS0035 Prairie View A&M University 90/96 12.960000 -61.980000 0 0 0.000000 0.000000 0.000000 0.000000 0.000000
    PIERS0036 Prairie View A&M University 90/96 11.120000 -62.800000 0 0 0.000000 0.000000 0.000000 0.000000 0.000000
    PIERS0037 INCUS experiment - Fort Collins, CO 40/96 12.310000 -97.200000 0 0 0.000000 0.000000 0.000000 0.000000 0.000000
    PIERS0038 Hampton University - CBBT, Island Three 90/96 12.840000 -75.360000 274 287 2.740000 69.600000 2.870000 72.900000 -4.740000
    PIERS0039 NPOL Radar 90/96 13.070000 -90.560000 304 310 3.040000 77.220000 3.100000 78.740000 -1.970000
    PIERS0040 Redden Farm 90/96 13.220000 -94.800000 175 174 1.750000 44.450000 1.740000 44.200000 0.570000
    PIERS0041 GSFC/Greenbelt - B33 Rooftop 90/96 12.710000 -78.930000 59 53 0.590000 14.990000 0.530000 13.460000 10.170000
    PIERS0042 WFF Pad 90/96 12.490000 -85.360000 129 140 1.290000 32.770000 1.400000 35.560000 -8.530000

    Documentation

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