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Cooperative Institute for Research in the Atmosphere
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Search CIRA Website x
Colorado State University
  • Home
  • Welcome & About
    • About CIRA
      • Jobs
      • Letter from Christian Kummerow:
      • Map & Directions
      • Organizational Structure
      • Reports
      • Room Schedules
      • Staff Directory
      • Strategic Plan
      • Vision & Mission Statement
    • Themes
      • Climate and Weather Processes
      • Competitive Projects
      • Data Assimilation
      • Data Distributions
      • Education and Outreach
      • Modeling Systems Research
      • NOAA Projects
      • Satellite Algorithm Development, Training and Education
      • Societal and Economic Impact Studies
    • Collaborative Groups
      • Colorado Climate Center
      • National Park Service
      • Regional and Mesoscale Meteorology Branch
  • Teams
    • Colorado Teams:
      • NOAA/Earth System Research Lab (ESRL) – Boulder, CO
      • Air Quality – Fort Collins, CO
      • Atmospheric Science (ATS) – Fort Collins, CO
      • Carbon – Fort Collins, CO
      • CIRA Software Engineering Group (CSEG) – Fort Collins, CO
      • Data Assimilation (DA) – Fort Collins, CO
      • Data Processing Centers (DPC) – Fort Collins, CO
      • Independent – Fort Collins, CO
      • MetSat – Fort Collins, CO
      • Regional and Mesoscale Meteorology Branch (RAMMB) – Fort Collins, CO
      • Training – Fort Collins, CO
      • Tropical Cyclone – Fort Collins, CO
    • Other Location Teams:
      • National Hurricane Center – Miami, FL
      • NESDIS Environmental Applications Team (NEAT) – College Park, MD
      • NWS/Meteorological Development Laboratory (MDL) – Silver Spring, MD
      • NWS/Aviation Weather Center (AWC) – Kansas City, MO
      • Office of Marine and Aviation Operations (OMAO-Training) – Kansas City, MO
  • News & Events
    • News
      • CIRA Administration News
      • Magazines
      • Reports
    • Events
      • Conferences
      • Seminars
  • Research & Publications
  • Imagery & Data
    • Imagery
      • Air Quality Research
        • Improve
        • VIEWS
      • CIRA Algorithm Testbed
      • CIRA Weather Station
      • RAMMB SLIDER
    • Data
      • CloudSat Data Processing Center
      • ECMWF Nature Run
      • RAMSDIS Online
        • GOES-West / GOES-East
        • Synthetic Forecast Imagery
        • Tropical Imagery
        • Suomi NPP VIIRS Imagery
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Search CIRA Website x
Christman Field Latest Observations
Date Time
MST
Temp
°F
RH
%
DewPt
°F
Wind
mph
Dir
°
Gust
mph
Dir
°
Press
in Hg
Solar
W/m^2
Prec
in
2021-04-21 18:55 30.8 93.0 29.0 3.6 154 4.4 152 0.000 0.9 0.00
2021-04-21 18:50 30.7 93.2 29.0 2.7 155 5.7 113 0.000 1.4 0.00
2021-04-21 18:45 30.7 93.3 29.0 2.7 130 4.8 95 0.000 1.9 0.00
2021-04-21 18:40 30.7 93.3 29.0 2.9 107 4.6 106 0.000 2.6 0.00
2021-04-21 18:35 30.7 93.3 29.0 2.5 96 4.1 85 0.000 3.0 0.00
2021-04-21 18:30 30.6 93.2 28.9 2.1 94 4.0 123 0.000 4.4 0.00
2021-04-21 18:25 30.7 93.3 29.0 3.3 99 5.7 139 0.000 5.3 0.00
2021-04-21 18:20 30.7 93.3 29.0 3.1 122 4.4 117 0.000 6.9 0.00
2021-04-21 18:15 30.7 93.0 28.9 2.8 128 3.8 128 0.000 9.0 0.00
2021-04-21 18:10 30.6 92.7 28.7 2.3 110 4.2 136 0.000 11.4 0.00
2021-04-21 18:05 30.6 92.3 28.7 3.3 119 4.1 123 0.000 12.7 0.00
2021-04-21 18:00 30.7 91.9 28.6 2.7 129 4.2 141 0.000 16.6 0.00
2021-04-21 17:55 30.8 91.5 28.6 2.1 127 3.2 139 0.000 21.0 0.00
2021-04-21 17:50 30.7 91.3 28.5 2.1 99 3.6 120 0.000 34.3 0.00
2021-04-21 17:45 30.6 90.6 28.2 3.1 108 4.8 109 0.000 29.4 0.00
2021-04-21 17:40 30.6 90.6 28.2 3.3 67 4.8 110 0.000 35.5 0.00
2021-04-21 17:35 30.6 91.1 28.3 3.3 107 5.0 105 0.000 31.9 0.00
2021-04-21 17:30 30.7 91.4 28.5 3.1 92 4.6 89 0.000 31.5 0.00
2021-04-21 17:25 30.7 91.4 28.5 2.7 116 4.0 103 0.000 34.7 0.00
2021-04-21 17:20 30.7 91.4 28.5 3.4 79 4.2 109 0.000 41.2 0.00
2021-04-21 17:15 30.7 91.4 28.5 3.2 92 4.8 101 0.000 46.0 0.00
2021-04-21 17:10 30.6 90.7 28.2 3.6 108 5.2 109 0.000 49.7 0.00
2021-04-21 17:05 30.6 90.6 28.2 3.5 115 5.2 88 0.000 52.8 0.00
2021-04-21 17:00 30.7 90.2 28.2 4.3 153 5.5 154 0.000 52.9 0.00
2021-04-21 16:55 30.9 90.4 28.4 4.7 149 6.4 142 0.000 57.2 0.00
2021-04-21 16:50 31.0 89.8 28.3 4.3 132 5.6 131 0.000 61.8 0.00
2021-04-21 16:45 31.1 89.1 28.3 5.0 143 6.5 124 0.000 76.3 0.00
2021-04-21 16:40 31.3 89.3 28.5 3.5 113 5.5 116 0.000 94.8 0.00
2021-04-21 16:35 31.2 89.7 28.6 3.6 129 6.2 127 0.000 100.9 0.00
2021-04-21 16:30 31.3 88.1 28.2 4.0 124 5.7 138 0.000 96.9 0.00
CIRA

Cooperative Institute for Research in the Atmosphere

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Adaptive Reduction of Striping for Improved Sea Surface Temperature Imagery from Suomi National Polar-Orbiting Partnership (S-NPP) Visible Infrared Imaging Radiometer Suite (VIIRS)


The Suomi National Polar-Orbiting Partnership (S-NPP) satellite was successfully launched on 28 October 2011. It carries five new-generation instruments, including the Visible Infrared Imaging Radiometer Suite (VIIRS). The VIIRS is a whiskbroom radiometer that scans the surface of the earth using a rotating telescope assembly, a double-sided half-angle mirror, and 16 individual detectors. Substantial efforts are being made to accurately calibrate all detectors in orbit. As of this writing, VIIRS striping is reduced to levels below those seen in corresponding Terra and Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) bands and meets the program specifications and requirements. However, the level 2 SST products derived from level 1 sensor data records (SDRs) thermal emissive bands still show residual striping. These artifacts reduce the accuracy of SST measurements and adversely affect cloud masking and the output of downstream applications, such as thermal front detection. To improve the quality of SST imagery derived from the VIIRS sensor, an adaptive algorithm was developed for operational use within the National Environmental Satellite, Data, and Information Service (NESDIS)’s SST system. The methodology uses a unidirectional quadratic variational model to extract stripe noise from the observed image prior to nonlocal filtering. Evaluation of the algorithm performance over an extended dataset demonstrates a significant improvement in the Advanced Clear-Sky Processor for Oceans (ACSPO) VIIRS SST image quality, with normalized improvement factors (NIF) varying between 5% and 25%.

Cooperative Institute for Research in the Atmosphere
Colorado State University
3925A West Laporte Ave.
Fort Collins, CO 80521

Phone: 970.491.8448
Fax: 970.491.8241

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