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Q.: An example of temperature structure differences in two cyclone systems derived from the Advanced Microwave Sounder Unit, Wea
- Forecast
"... The Advanced Microwave Sounding Unit (AMSU) has better horizontal resolution and vertical temperature sounding abilities than its predecessor, the Microwave Sounding Unit (MSU). Those improved capabilities are demonstrated with observations of two cyclonic weather systems located in the South Pacifi ..."
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The Advanced Microwave Sounding Unit (AMSU) has better horizontal resolution and vertical temperature sounding abilities than its predecessor, the Microwave Sounding Unit (MSU). Those improved capabilities are demonstrated with observations of two cyclonic weather systems located in the South Pacific Ocean on 1 March 1999. These weather systems appear quite similar in conventional infrared satellite imagery, suggesting that they are comparable in structure and intensity. However, an analysis using temperature retrievals created from the AMSU shows that their vertical thermal structure is quite different. This is just one example of an application highlighting the improved sounding capabilities available with the AMSU instrument suite. A preliminary look at what the AMSU can provide in data-void regions and a discussion of future plans to create AMSU-based products to better diagnose synoptic-scale weather systems are presented.
On the structure of the lower troposphere in the summertime stratocumulus regime of the northeast
- Weather Rev
, 2007
"... Data collected in situ as part of the second field study of the Dynamics and Chemistry of Marine Stratocumulus field program are used to evaluate the state of the atmosphere in the region of field operations near 30°N, 120°W during July 2001, as well as its representation by a variety of routinely a ..."
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Data collected in situ as part of the second field study of the Dynamics and Chemistry of Marine Stratocumulus field program are used to evaluate the state of the atmosphere in the region of field operations near 30°N, 120°W during July 2001, as well as its representation by a variety of routinely available data. The routine data include both the 40-yr European Centre for Medium-Range Weather Forecasts (ECMWF) Re-Analysis (ERA-40) and NCEP–NCAR reanalyses, forecasts from their respective forecast systems (the Integrated and Global Forecast Systems), the 30-km archive from the International Satellite Cloud Climatology Project (ISCCP), the Quick Scatterometer surface winds, and remotely sensed fields derived from radiances measured by the Tropical Rainfall Measuring Mission (TRMM) Microwave Imager (TMI), the Advanced Microwave Sounding Unit, and the Advanced Very High Resolution Radi-ometer. The analysis shows that outside of the boundary layer the state of the lower troposphere is reasonably represented by the reanalysis and forecast products, with the caveat of a slight warm bias at 850 hPa in the NCEP–NCAR products. Within the planetary boundary layer (PBL) the agreement is not as good: both the boundary layer depth and cloud amount are underpredicted, and the boundary layer temperature correlates poorly with the available data, which may be related to a poor representation of
1JP1.15 ADVANCED-TOVS (ATOVS) SOUNDING PRODUCTS FROM NOAA POLAR ORBITING ENVIRONM ENTAL SATELLITES
"... The National Oceanic and Atm ospheric Administration deploys a fleet of civilian, polar orbiting environmental satellites which provides users and researchers with a suite of operational ..."
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The National Oceanic and Atm ospheric Administration deploys a fleet of civilian, polar orbiting environmental satellites which provides users and researchers with a suite of operational
CORRECTING FOR PRECIPITATION EFFECTS IN SATELLITE-BASED PASSIVE MICROWAVE TROPICAL CYCLONE INTENSITY ESTIMATES
, 2005
"... Public reporting burden for this collection of Information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments ..."
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Public reporting burden for this collection of Information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this
CORRECTING FOR PRECIPITATION EFFECTS IN SATELLITE-BASED PASSIVE MICROWAVE TROPICAL CYCLONE INTENSITY ESTIMATES
, 2005
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National Oceanic end Atmospheric Administration National Environmental Satellite,
, 2001
"... The National Environmental Satellite, Data, and Information Service (NESDIS) manages the Nation's civil Earth-observing satellite systems, as well as global national data bases for meteorology, oceanography, geophysics, and solar-terrestrial sciences, From these sources, it develops and dissemi ..."
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The National Environmental Satellite, Data, and Information Service (NESDIS) manages the Nation's civil Earth-observing satellite systems, as well as global national data bases for meteorology, oceanography, geophysics, and solar-terrestrial sciences, From these sources, it develops and disseminates environmental data and information products critical to the protection of life and property, national defense, the national economy, energy development and distribution, global food supplies, and the development of natural resources. Publication in the NOAA Technical Memorandum series does not preclude later publication in scientific journals in expanded or modified form. The NESDIS series of NOAA Technical Memorandums is a continuation of the former NESC and EDS series of NOAA Technical Memorandums and the NESC and EDS series of theEnvironmental Science Services Administration (ESSA) Technical Memorandum.
The Feasibility of Radar-Based Remote Sensing of Barometric Pressure Final Report
, 2006
"... This study assesses the feasibility of radar-based remote sensing of barometric pressure of the air at the sea surface. Currently, sea surface barometric pressure measurements can only be obtained from in situ observations including buoy and dropsonde measurements, which are sparse in spatial covera ..."
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This study assesses the feasibility of radar-based remote sensing of barometric pressure of the air at the sea surface. Currently, sea surface barometric pressure measurements can only be obtained from in situ observations including buoy and dropsonde measurements, which are sparse in spatial coverage and expensive to implement. There are no operational remote sensing methods available even in experimental stages. The proposed technology is to use differential absorption radar working at the 50-56 GHz O2 bands to fill the observational gap. The numerical simulation results for homogeneous sea surface backgrounds show that with an airborne radar working at these O2 absorption bands, the rms errors of the instantaneous radar surface pressure estimates with 15 dB signal-to-noise ratios can be as low as 4–7 mb. With multiple measurements over an area about 10 km the uncertainty in radar sea surface pressure estimates would drop to about 1 mb which is similar to conventional in situ buoy measurements. A radar system that covers the O2 absorption wavelengths over the ocean will have great potential for weather observations and other meteorological
1241Bulletin of the American Meteorological Society
"... Scientific progress often comes about as a result of new instruments for making scientific observations. The Advanced Microwave Sounding Unit (AMSU) is ..."
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Scientific progress often comes about as a result of new instruments for making scientific observations. The Advanced Microwave Sounding Unit (AMSU) is
Bay of Bengal and Arabian Sea using TOVS and ATOVS data
"... Foreshadowing the tracks of tropical depressions and cyclonic storms and understanding their thermodynamical ..."
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Foreshadowing the tracks of tropical depressions and cyclonic storms and understanding their thermodynamical
P4.15 POLAR WIND RETRIEVALS USING THE ADVANCED MICROWAVE SOUNDING UNIT
"... Wind measurements derived from satellite data are most valuable over the oceanic regions where few surface and radiosonde ..."
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Wind measurements derived from satellite data are most valuable over the oceanic regions where few surface and radiosonde
