thesislog.net contact us

On the sampling of airborne measurements of radiative properties of cloud fields: Results from International Cirrus Experiment (ICE), 1987

Theoretical and applied climatology / v.48 no.2/3. 1993, pp.115-125

http://dx.doi.org/10.1007/BF00864918

Author : Lee, F.Y. ; Raschke, E.

Abstract : Summary During the first pilot phase of the International Cirrus Experiment (ICE) in September/October 1987 radiation measurements were carried out above and below broken cloud fields over the German Bight. Analyses of the measurements of 25.9.1987 (broken cumulus cloud field) showed an unexpected high ldquo;absorptionrdquor; of solar radiation but not those of 28.9.1987 (stratocumulus/stratus cloud field). This might be explained by a partial negligence of cloud side factor under the viewing geometry of the pyranometer and other reasons. The light guide effect (ldquo;leakagerdquor;) within holes can account for the depletion of cloud reflectance and the enhancement of cloud transmittance at large cloud cover, as observed during the measurements on 28.9.1987. The fluctuation of the irradiances, which can be characterized by the intermittency parameter, has been related to the corresponding cloud cover by a regression equation. On the condition of similarity, this scaling parameter derived from sample measurements could be extrapolated to that of the whole cloud field. Thus, the estimation of the irradiance spectrum for the whole cloud field may be possible, from samples taken with aircraft and imaging data.

Keyword :

Prevailing cloud types in Athens

Summary Prevailing cloud types and their daily, annual and interannual variation in the region..

Comparisons of modelled and observed climate for impact assessments

Summary Comparisons between observed and modelled values of surface temperature, surface preci..

Greenhouse statistics-time series analysis

Summary The relationship global mean temperature mdash; atmospheric concentration of carbon di..

Effect of angiotensin-converting enzyme inhibitors in left ventricular dysfunct..

Over 13,000 patients have been randomized in 35 long-term trials of the use of angiotensin-conv..

Validation of primary and secondary outcomes and classification of mode of deat..

The AIRE study--a trial involving over 2,000 patients with clinical heart failure after myocard..

Early or late ACE inhibition after myocardial infarction.

There is justifiable enthusiasm for the use of angiotensin-converting enzyme (ACE) inhibitors i..

The role of exercise testing in heart failure.

The objectives of exercise testing in congestive heart failure (CHF) may be summarized as follo..

The effects of ACE inhibition on progression of atherosclerosis.

Angiotensin-converting enzyme inhibitors have been extensively studied and established in the t..

Contribution of bradykinin to the cardiovascular effects of ramipril.

From pharmacologic investigations and clinical studies it is known that angiotensin-converting ..

Truncated GroEL monomer has the ability to promote folding of rhodanese without..

Similar to chaperonins from other sources, intact chaperonin from Escherichia coli (GroEL) exis..