Application of a multifilter shadowband radiometer and microwave radiometer for ground based evaluation of aerosol-cloud interactions

Barry Gross; Lina Cordero; Julia He; Bomidi Madhalvan; Fred Moshary; Sam Ahmed

doi:10.1117/12.898366

26 October 2011 Application of a multifilter shadowband radiometer and microwave radiometer for ground based evaluation of aerosol-cloud interactions

Barry Gross, Lina Cordero, Julia He, Bomidi Madhalvan, Fred Moshary, Sam Ahmed

Author Affiliations +

Proceedings Volume 8177, Remote Sensing of Clouds and the Atmosphere XVI; 81770N (2011) https://doi.org/10.1117/12.898366
Event: SPIE Remote Sensing, 2011, Prague, Czech Republic

Abstract

The quantification of the first direct aerosol cloud interaction mechanism requires simultaneous observations of cloud water drop properties as well as aerosol properties below the cloud. The simultaneous measurement of both these properties is very difficult from space borne systems and efforts to develop ground remote sensing measurements are critical. To measure the cloud properties, we make use of an approach which combines a Microwave radiometer and a MFRSR radiometer for simultaneous Cloud Optical Depth (COD) and Liquid Water Path (LWP). From these measurements, effective droplet diameter can be estimated assuming the homogeneity of the cloud. In using the diffuse flux, we confirm that for COD > 2 and solar zenith angles < 60, the standard MFRSR correction can be applied with errors < 1%. In addition, we develop a method whereby regional retrieval of Microphysical properties from multispectral extinction measurements can be made based on NN based methods trained on full sky scans. Also, we discuss the uncertainty in the inferred COD due to various input parameters in the formation of Look-Up-Tables and present preliminary data sets for evaluation. Finally, we discuss methods to extract useful aerosol information during partly cloudy conditions that can be used to better define the state of the aerosol prior to cloud interaction.

Citation Download Citation

Barry Gross, Lina Cordero, Julia He, Bomidi Madhalvan, Fred Moshary, and Sam Ahmed "Application of a multifilter shadowband radiometer and microwave radiometer for ground based evaluation of aerosol-cloud interactions", Proc. SPIE 8177, Remote Sensing of Clouds and the Atmosphere XVI, 81770N (26 October 2011); https://doi.org/10.1117/12.898366

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
10 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Clouds

Aerosols

Radiometry

Atmospheric modeling

Satellites

Microwave radiation

Atmospheric optics

Show All Keywords

Keywords/Phrases

Search In:

Publication Years