Biases in wind speed estimation from satellite-based remote sensing

Bulletin of the American Meteorological Society;  December 1, 2002 ;     445 words ...Wind speed distributions over the oceans are necessary...10-m winds of +/- 2 m s^sup -1^ in the wind speed range 2-24 m s^sup-1^ if the wind direction...the operational range and accuracy of wind speed measured using conventional in situ instrumentation...

A Novel Approach to Marine Wind Speed Assessment Using Synthetic Aperture...

Weather and Forecasting;  February 1, 2006 ;     700+ words ......on synthetic aperture radar (SAR)-based marine wind speed. The SAR-based wind speed fields of the current research are generated...product described here consists of a pair of wind speed images bounding the wind speed range consistent...

Nowcasting the variation of wind speed with height using gust factor...

National Weather Digest;  December 1, 2003 ;     700+ words ......ground level up to a few hundred feet, the wind speed normally increases with height under...Knowledge of the vertical variation of the wind speed is important to operational meteorologists...evacuation shelter? This increase in wind speed is often estimated operationally using...

Comparison of Synthetic Aperture Radar-Derived Wind Speeds with Buoy Wind...

Journal of Applied Meteorology and Climatology;  May 1, 2008 ;     700+ words ......potential for remotely sensing surface wind speed both over the open sea and in close proximity...need to verify the performance of SAR wind speed retrieval in coastal environments adjacent...wind direction values required for SAR wind speed retrieval algorithms cannot be obtained...

Questions & answers. (Mind games).(wind speed and time zones)(Brief...

Geographical;  April 1, 2002 ;     403 words ...FAST AS THE WIND What is the fastest wind speed ever recorded on Earth and where was this? How is wind speed measured? Wind speed is usually measured using an anemometer. There are many varieties but the traditional cup-type anemometer works on...

Hurricane Surface Wind Measurements from an Operational Stepped Frequency...

Monthly Weather Review;  September 1, 2007 ;     700+ words ......aircraft for operational hurricane surface wind speed measurement in 2005. An unprecedented...both instrument performance and surface wind speed retrieval quality up to 70 m s^sup -1...this end, a new microwave emissivity-wind speed model function based on estimates of...

Method for estimation of surface roughness and similarity function of wind...

Journal of Applied Meteorology;  May 1, 1998 ;     700+ words ......universal similarity function of the wind speed profile ((psi)^sub M^) based on ultrasonic...not require experimental knowledge of wind speed vertical profiles. It permits the use...other things, this interaction decreases wind speed in inverse relation to the closeness...

The Concept of a Microwave Radar with an Asymmetric Knifelike Beam for the...

Journal of Atmospheric and Oceanic Technology;  November 1, 2005 ;     700+ words ......satellites. A new approach to wind speed retrieval at and near nadir...significant wave height (altimeter), wind speed (altimeter and scatterometer...significant wave height, and the wind speed (from backscattered power). The precision of retrieved wind speed may ...

Stable plume rise in a shear layer.(Report)

Journal of the Air & Waste Management Association;  March 1, 2007 ;     700+ words ......given for plume rise assuming a power-law wind speed profile in a stably stratified layer...momentum and buoyancy. For a constant wind speed, these solutions simplify to the conventional...compared with the plume rise with a constant wind speed equal to the wind speed ...

Atmospheric Circulation Effects on Wind Speed Variability at Turbine...

Journal of Applied Meteorology and Climatology;  April 1, 2007 ;     700+ words ...ABSTRACT Mean monthly wind speed at 70 m above ground level is investigated...as 12 months. Monthly variation in wind speed primarily is determined by the north-sou...depending on the site). Regression on wind speed residuals (pressure gradient effects...

Manual and Semiautomated Wind Direction Editing for Use in the Generation...

Journal of Applied Meteorology and Climatology;  June 1, 2007 ;     700+ words ......as an accurate scatterometer, yielding wind speed fields with subkilometer resolution. This wind speed generation is only possible, however...sources has shortcomings that can lead to wind speed errors in the SAR-derived field. Manual...

A Combined Physical-Statistical Approach for the Downscaling of Model Wind...

Weather and Forecasting;  June 1, 2004 ;     700+ words ......approach for the downscaling of model wind speed is assessed. The key factor in this approach...and the locally valid conditions. For wind speed, the RM is primarily determined by the...model output to produce high-resolution wind speed fields. Using a 3-yr dataset, the combined...

An Examination of Tropical and Extratropical Gust Factors and the...

Journal of Applied Meteorology;  February 1, 2005 ;     700+ words ......ratio between a peak wind gust and mean wind speed over a period of time, can be used along...extratropical systems. Using high-resolution wind speed data collected from both landfalling...associated tropical and extratropical wind speed histograms. As expected, the mean gust...

British Inventors Develop Wind Speed Measurement Apparatus

US Fed News Service, Including US State News;  January 1, 2008 ;     259 words ......Malvern, Great Britain, have developed a wind speed measurement apparatus. According to the...that comprises a laser radar (lidar) wind speed measurement device. The lidar is arranged...released by the Patent Office, said: "The wind speed measurement apparatus may further comprise...

Wind speed above and within sunflower stalks varying in height and...

Journal of Soil and Water Conservation;  September 22, 1998 ;     700+ words ......protect the soil from erosion by reducing wind speed near the soil surface, which prevents...Smika (1983) measured a 74% reduction in wind speed at the soil surface when standing wheat...standing sunflower silhouette area index on wind speed within and above standing sunflower ...