Analysis of cloud impact on infrared and microwave atmospheric sounding performance using NAST

Author

Blackwell, W.J. ; Staelin, D.H.

Author_Institution

MIT, Cambridge, MA, USA

Volume

1

fYear

2002

fDate

2002

Firstpage

562

Abstract

Data collected by airborne infrared (NAST-I, MAMS) and microwave (NAST-M) sensors during CAMEX-3 (Florida, summer 1998) are used to quantify the cloud impact on atmospheric sounding performance in several ways. First, the degrees of freedom introduced by clouds are estimated by applying principal component transforms to cloud-perturbed (clear minus cloudy) NAST spectra. These results are then compared to those obtained using radiances simulated using two-level clouds. Finally, the radiance cloud-clearing performance for NAST-type clouds is evaluated and compared with results for simulated two-level clouds.

Keywords

atmospheric techniques; clouds; infrared spectrometers; remote sensing; 118.75 GHz; 50 to 57 GHz; 620 to 2720 K; AD 1998; CAMEX-3 radiance database; Florida; MAMS; Multispectral Atmospheric Mapping Sensor; NAST-I; NAST-M; NPOESS Aircraft Sounder Testbed-Interferometer; NPOESS Aircraft Sounder Testbed-Microwave; airborne infrared sensors; airborne microwave sensors; atmospheric sounding performance; cloud impact; multispectral scanner; neural networks; passive microwave spectrometer; Acoustic testing; Aircraft; Atmospheric modeling; Classification algorithms; Clouds; Infrared sensors; Instruments; Ocean temperature; Performance analysis; Spectroscopy;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2002. IGARSS '02. 2002 IEEE International

Print_ISBN

0-7803-7536-X

Type

conf

DOI

10.1109/IGARSS.2002.1025106

Filename

1025106