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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: 12/29/2025
    Report generated 12/29/2025 @ 20:31:57 Local (12/30/2025 @ 01:31:57 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 96/96 13.190000 -86.670000 8 8 0.080000 2.030000 0.080000 2.030000 0.000000
    PIERS0002 Haywards_Lott 96/96 13.100000 -83.000000 0 0 0.000000 0.000000 0.000000 0.000000 0.000000
    PIERS0003 William_St_Well 96/96 12.860000 -97.250000 0 0 0.000000 0.000000 0.000000 0.000000 0.000000
    PIERS0004 Somerset_Rd 96/96 12.840000 -84.830000 0 0 0.000000 0.000000 0.000000 0.000000 0.000000
    PIERS0005 American_Legion 96/96 13.070000 -71.000000 0 0 0.000000 0.000000 0.000000 0.000000 0.000000
    PIERS0006 Doc_Johnson 96/96 13.070000 -78.170000 0 0 0.000000 0.000000 0.000000 0.000000 0.000000
    PIERS0007 LeVecque 95/96 13.120000 -81.610000 6 6 0.060000 1.520000 0.060000 1.520000 0.000000
    PIERS0008 Lowes 96/96 13.300000 -109.830000 0 0 0.000000 0.000000 0.000000 0.000000 0.000000
    PIERS0011 Pocomoke_MS 96/96 12.150000 -92.080000 0 0 0.000000 0.000000 0.000000 0.000000 0.000000
    PIERS0012 Pocomoke_HS 96/96 13.320000 -108.330000 0 1 0.000000 0.000000 0.010000 0.250000 0.000000
    PIERS0018 Stockton Volunteer Fire Company 96/96 13.310000 -110.230000 4 4 0.040000 1.020000 0.040000 1.020000 0.000000
    PIERS0021 How Sweet it is 96/96 13.170000 -109.210000 0 0 0.000000 0.000000 0.000000 0.000000 0.000000
    PIERS0024 Silva_Rd 96/96 13.130000 -87.170000 4 4 0.040000 1.020000 0.040000 1.020000 0.000000
    PIERS0026 UMES 96/96 12.200000 -84.420000 0 0 0.000000 0.000000 0.000000 0.000000 0.000000
    PIERS0027 WFF Pad 96/96 12.290000 -95.770000 10 7 0.100000 2.540000 0.070000 1.780000 30.000000
    PIERS0028 UCONN - GAIL site 96/96 12.300000 -78.560000 72 71 0.720000 18.290000 0.710000 18.030000 1.390000
    PIERS0029 Lehman College, NYC 96/96 12.610000 -57.580000 30 29 0.300000 7.620000 0.290000 7.370000 3.330000
    PIERS0030 Texas A&M University - Corpus Christi 96/96 10.880000 -86.310000 1 1 0.010000 0.250000 0.010000 0.250000 0.000000
    PIERS0031 Xavier University 96/96 12.990000 -101.620000 2 1 0.020000 0.510000 0.010000 0.250000 50.000000
    PIERS0032 Texas Tech University 96/96 13.300000 -107.920000 0 0 0.000000 0.000000 0.000000 0.000000 0.000000
    PIERS0033 University of Arizona 96/96 13.260000 -107.170000 0 0 0.000000 0.000000 0.000000 0.000000 0.000000
    PIERS0034 Prairie View A&M University 96/96 12.730000 -83.100000 1 1 0.010000 0.250000 0.010000 0.250000 0.000000
    PIERS0035 Prairie View A&M University 96/96 12.960000 -61.080000 0 0 0.000000 0.000000 0.000000 0.000000 0.000000
    PIERS0036 Prairie View A&M University 20/96 9.860000 -80.100000 0 0 0.000000 0.000000 0.000000 0.000000 0.000000
    PIERS0039 NPOL Radar 96/96 12.290000 -97.310000 0 0 0.000000 0.000000 0.000000 0.000000 0.000000
    PIERS0040 Redden Farm 96/96 13.250000 -108.920000 0 0 0.000000 0.000000 0.000000 0.000000 0.000000
    PIERS0041 GSFC/Greenbelt - B33 Rooftop 96/96 11.900000 -89.230000 0 1 0.000000 0.000000 0.010000 0.250000 0.000000
    PIERS0042 WFF Pad 96/96 12.060000 -91.040000 7 7 0.070000 1.780000 0.070000 1.780000 0.000000
    Missing: PIERS0038 Hampton University - CBBT, Island Three -999 -999.000000 -999.000000 -999 -999 -999.000000 -999.000000 -999.000000 -999.000000 -999.000000
    Missing: PIERS0037 INCUS experiment - Fort Collins, CO -999 -999.000000 -999.000000 -999 -999 -999.000000 -999.000000 -999.000000 -999.000000 -999.000000

    Documentation

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