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CIRA
Cooperative Institute for Research in the Atmosphere
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      • 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
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      • Independent – Fort Collins, CO
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      • 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
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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
  • Contact Us
    • Connect with us
      • Jobs
      • Map & Directions
      • Facebook
      • Twitter
      • LinkedIn
    • Staff Directory
      • Boulder
      • College Park
      • Fort Collins
      • Kansas City
      • Miami
      • Silver Spring
  • Search
  • Staff
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
2021-04-20 22:20 30.5 61.9 19.0 5.7 1 7.7 14 0.000 0.0 0.00
2021-04-20 22:15 30.5 61.4 18.8 4.7 7 5.6 30 0.000 0.0 0.00
2021-04-20 22:10 30.4 61.2 18.7 4.9 16 6.0 15 0.000 0.0 0.00
2021-04-20 22:05 30.4 61.1 18.6 4.8 21 5.8 17 0.000 0.0 0.00
2021-04-20 22:00 30.3 64.5 19.8 4.6 11 5.7 13 0.000 0.0 0.00
2021-04-20 21:55 30.5 62.4 19.2 3.2 15 4.6 13 0.000 0.0 0.00
2021-04-20 21:50 30.4 59.4 18.0 3.0 35 4.3 34 0.000 0.0 0.00
2021-04-20 21:45 30.1 60.5 18.1 2.3 51 3.2 53 0.000 0.0 0.00
2021-04-20 21:40 30.0 64.4 19.4 2.1 23 2.8 23 0.000 0.0 0.00
2021-04-20 21:35 30.0 63.3 19.1 2.7 17 3.2 17 0.000 0.0 0.00
2021-04-20 21:30 30.5 65.7 20.4 2.7 17 3.4 17 0.000 0.0 0.00
2021-04-20 21:25 30.7 60.4 18.7 1.9 17 2.4 17 0.000 0.0 0.00
2021-04-20 21:20 30.8 55.9 16.9 1.1 17 2.0 17 0.000 0.0 0.00
2021-04-20 21:15 30.7 56.1 16.9 1.4 350 2.6 349 0.000 0.0 0.00
2021-04-20 21:10 30.7 52.5 15.4 0.3 17 0.7 17 0.000 0.0 0.00
2021-04-20 21:05 30.8 57.1 17.4 0.9 17 1.4 17 0.000 0.0 0.00
2021-04-20 21:00 30.8 56.1 17.0 1.7 17 2.1 17 0.000 0.0 0.00
2021-04-20 20:55 30.7 53.9 16.0 1.8 29 2.8 18 0.000 0.0 0.00
2021-04-20 20:50 30.7 58.4 17.9 1.4 28 2.9 21 0.000 0.0 0.00
2021-04-20 20:45 30.8 62.4 19.5 1.9 13 2.7 355 0.000 0.0 0.00
2021-04-20 20:40 30.9 58.5 18.1 2.3 4 3.2 356 0.000 0.0 0.00
2021-04-20 20:35 31.0 57.8 17.8 3.0 356 3.7 354 0.000 0.0 0.00
2021-04-20 20:30 31.1 56.4 17.4 2.5 355 3.4 0 0.000 0.0 0.00
2021-04-20 20:25 31.1 56.1 17.3 3.2 5 4.1 12 0.000 0.0 0.00
2021-04-20 20:20 31.1 53.8 16.3 4.5 11 5.5 10 0.000 0.0 0.00
2021-04-20 20:15 31.1 55.3 16.9 5.0 5 5.6 349 0.000 0.0 0.00
2021-04-20 20:10 31.6 55.4 17.4 3.6 345 4.6 342 0.000 0.0 0.00
2021-04-20 20:05 31.9 53.3 16.8 2.5 332 3.7 305 0.000 0.0 0.00
2021-04-20 20:00 32.2 54.4 17.6 0.1 136 1.5 136 0.000 0.0 0.00
2021-04-20 19:55 32.1 51.0 16.1 2.0 118 3.8 139 0.000 0.0 0.00
CIRA

Cooperative Institute for Research in the Atmosphere

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Suomi NPP VIIRS Imagery evaluation


The Visible Infrared Imaging Radiometer Suite (VIIRS) combines the best aspects of both civilian and military heritage instrumentation. VIIRS has improved capabilities over its predecessors: a wider swath width and much higher spatial resolution at swath edge. The VIIRS day-night band (DNB) is sensitive to very low levels of visible light and is capable of detecting low clouds, land surface features, and sea ice at night, in addition to light emissions from both man-made and natural sources. Imagery from the Suomi National Polar-orbiting Partnership (Suomi NPP) satellite has been in the checkout process since its launch on 28 October 2011. The ongoing evaluation of VIIRS Imagery helped resolve several imagery-related issues, including missing radiance measurements. In particular, near-constant contrast imagery, derived from the DNB, had a large number of issues to overcome, including numerous missing or blank-fill images and a stray light leakage problem that was only recently resolved via software fixes. In spite of various sensor issues, the VIIRS DNB has added tremendous operational and research value to Suomi NPP. Remarkably, it has been discovered to be sensitive enough to identify clouds even in very low light new moon conditions, using reflected light from the Earth’s airglow layer. Impressive examples of the multispectral imaging capabilities are shown to demonstrate its applications for a wide range of operational users. Future members of the Joint Polar Satellite System constellation will also carry and extend the use of VIIRS. Imagery evaluation will continue with these satellites to ensure the quality of imagery for end users.

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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