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  • 1
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    Application of Satellite-Derived Land Surface Temperature to Minimum Temperature Forecasting (2004)
    In:  Other Sources
    Details
    Publication Date: 2019-07-18
    Description: Satellite-derived land surface temperature (LST) is studied for the purpose of understanding regional skin temperature dependency and variability, and its relationship to corresponding, site-specific air temperature. Skin temperature is highly correlated with surface-air temperature although it differs depending on land surface characteristics, terrain, and atmospheric conditions on a diurnal and seasonal scale. The high temporal resolution of the Geostationary Operational Environmental Satellite (GOES) -12 sounder is used to compare the diurnal cycles of LST and surface-air temperature. The minimum for both temperatures occurs near sunrise and LST is found to agree closely with surface-air temperatures a period of hours before sunrise on clear sky nights. The Moderate Resolution Imaging Spectroradiometer (MODIS)-derived LST renders more horizontal temperature structure - with its high spatial resolution (1 km at nadir) compared to the GOES-12 sounder (10 km). Nighttime MODIS-derived LST is extrapolated to the time of minimum temperature for a number of case study days and these are grouped by season and atmospheric conditions. These composites show that the variation in LST mirror the variation in minimum surface-air temperature under similar conditions.
    Keywords: Meteorology and Climatology
    Type: 13th Conference on Satellite Meteorology and Oceanography; Sep 20, 2004 - Sep 24, 2004; Norfolk, VA; United States
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    The Geostationary Operational Environmental Satellite (GOES) Product Generation System (2004)
    In:  CASI
    Details
    Publication Date: 2019-07-11
    Description: The Geostationary Operational Environmental Satellite (GOES) Product Generation System (GPGS) is introduced and described. GPGS is a set of computer programs developed and maintained at the Global Hydrology and Climate Center and is designed to generate meteorological data products using visible and infrared measurements from the GOES-East Imager and Sounder instruments. The products that are produced by GPGS are skin temperature, total precipitable water, cloud top pressure, cloud albedo, surface albedo, and surface insolation. A robust cloud mask is also generated. The retrieval methodology for each product is described to include algorithm descriptions and required inputs and outputs for the programs. Validation is supplied where applicable.
    Keywords: Meteorology and Climatology
    Type: NASA/TM-2004-213286 , M-1118
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Comparison of Daily Total Precipitable Water From Satellite and Model Reanalysis Fields (2000)
    In:  Other Sources
    Details
    Publication Date: 2019-07-17
    Description: Previous studies have shown that there is fairly good agreement between the monthly values of total precipitable water (TPW) from the NVAP data set, a multi satellite and radiosonde merged data product, and the NCEP reanalysis TPW data. However, there are regions and time periods where significant differences between the data sets are found in the monthly mean TPW time series and period of record trends. To better understand these differences seen in the monthly data values, the daily mean TPW data are examined. Possible contributions to the TPW differences such as data quality of the individual NVAP data set components associated with missing or irregular daily values are addressed. Also, effects associated with the weighting of the individual NVAP data set components to form a merged product are considered. The daily variations in TPW exhibited by each data set are also quantified and compared between the data sets.
    Keywords: Meteorology and Climatology
    Type: Satellite Meteorology and Oceanography; Jan 10, 2000 - Jan 14, 2000; Long Beach, CA; United States
    Format: text
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    NASA TECHNICAL REPORTS
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