Mr. Benjamin Marchant Profile

Benjamin Marchant

at Lab d'optique atmosphèrique

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 16 October 2007 Paper

Sensitivity of passive measurements in VIS, SWIR, and TIR to cirrus microphysical vertical profile: application to cloud remote sensing from MODIS

Benjamin Marchant, Gérard Brogniez, Jérome Riedi, Philippe Dubuisson, Laurent Labonnote

Proceedings Volume 6745, 67450L (2007) https://doi.org/10.1117/12.737467

KEYWORDS: Clouds, Crystals, Particles, MODIS, Infrared radiation, Remote sensing, Thermography, Crystallography, Algorithm development, Satellites

Read Abstract +

For inferring cirrus optical and microphysical properties from satellite imagery, a common assumption is that the radiative properties of a cirrus cloud may be represented by those associated with a specific ice crystal habit, a single particle size distribution and Ice Water Content (IWC). Various algorithms have been developed to retrieve cirrus optical and microphysical properties in the past 20 years. They can be categorized into the techniques based on either thermal infrared or solar reflection measurements. However, in-situ measurements have shown that shapes, sizes and IWC of ice crystals may vary substantially with height within the clouds. Given the different sensitivity of thermal infrared and solar wavelength to cloud microphysics, it is unlikely that a single cloud layer with homogeneous cloud properties can be used to reproduce both type of measurements. Thus, it is necessary to assess the effect of vertical inhomogeneity within cirrus on the radiative transfer calculations and on the retrieval techniques. The purpose of this study is to investigate a microphysical cirrus model composed of different layers in terms of ice crystal habit, size and IWC. The vertical structure will be given by simple analytic formula derived from various prescribed physical constraints. The primary goal of this study is to determine a simple cloud model that can be used to retrieve consistent information from both solar and thermal measurements. For this purpose, we examine the sensitivity of cirrus reflectances and brightness temperature to its vertical description for a suite of MODIS (MODerate-resolution Imaging Spectroradiometer) bands spanning visible, near infrared and thermal infrared wavelengths. Results of this study are presented and potential application to remote sensing of cirrus clouds with MODIS are discussed.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

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:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years