Hrynčyk, M. M. Šlachi biełaruskaha vieršaskładańnia. BDU, Minsk, 1973. 264 pages. Index.

McMillin, Arnold

doi:10.30965/20526512-00302008

Cited by 1 publication

(2 citation statements)

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“…An extension to this method is given by Susskind and Reuter (1985). McMillin (1978) presents another version of the adjacent field-of-view approach which is closely related to the N* method. By writing Eqs.…”

Section: Here Ormentioning

confidence: 99%

“…Firstly, a more thorough treatment is given to the detection of clear areas, including inter-channel regression relations between MSU channels, HIRS long-wave (15 pm) channels and HIRS short-wave (4.3 pm) channels. In areas found to be partly cloudy, the N* method is applied with a series of tests to check its validity, including some based on the approach of McMillin (1978). Also, N* is calculated in two ways: from HIRS and MSU radiances, and from HIRS long-wave and short-wave radiances.…”

Section: Here Ormentioning

confidence: 99%

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A sequential estimation approach to cloud-clearing for satellite temperature sounding

EYRE¹,

WATTS²

1987

Quarterly Journal of the Royal Meteorological Society

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Temperature sounding of the troposphere using satellite-borne infrared radiometers is complicated by the effects of clouds on the measured radiances. If accurate products are to be obtained these effects must first be detected and, if possible, corrections must be made for them in the retrieval procedures. This is normally done by converting the measured radiances to the 'clear-column' values which would be observed from the same atmospheric profile in the absence of cloud-a process known as 'cloud-clearing'.In this paper a review of cloud-clearing methods is presented. Then a new approach to cloud-clearing, based on the principles of optimal estimation, is developed and applied to data from HIRS (the High-resolution Infrared Radiation Sounder) on the TIROS-N/NOAA satellite series.Preliminary estimates of clear-column radiances and their expected errors are obtained at each HIRS spot by one of a number of methods, depending on the cloud characteristics. The properties of horizontal consistency expected in the clear-column radiance field are then employed to improve the initial estimates using a sequential estimation procedure. This scheme is intended for implementation in the Local Area Sounding System of the Meteorological Office, which provides satellite soundings of high horizontal resolution for use in operational weather forecasting. Details of the new scheme, and of the old scheme which it replaces, are given. The improvements in clear-column radiances are demonstrated by comparing the products of the old and new schemes with clear-column radiances derived from coincident data of AVHRR (the Advanced Very High Resolution Radiometer). 1349

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Section: Here Ormentioning

confidence: 99%

Section: Here Ormentioning

confidence: 99%