NSF Home IMAGE LIBRARY HOME Contact NSF Image Library How to Use the NSF Image Library
Image Search


IMAGE SEARCH
ALL IMAGES
NEW ADDITIONS TO THE LIBRARY
NEWS IMAGES
NSF SENIOR STAFF
OTHER PHOTO SOURCES
Image: Photograph of South Asian brown haze hanging over the Nepalese town of Phaplu (bottom panel), on March 25, 2001. The photo was taken from a flight altitude of about 3 km. The location was approximately 30 km south of Mt. Everest (seen in the top panel). Both photographs were taken from the same location—one viewing north (top) and the other south (bottom).<BR> <BR> During the dry season from January to April, the brown sky seen over Nepal is typical of many areas in South Asia. The dry north-east monsoonal winds carry the anthropogenic haze thousands of kilometers south and south eastwards and spread it over most of the tropical Indian Ocean, from 25° N to about 5° S. These aerosols pose the largest uncertainty in model calculations of the climate forcing due to man-made changes in the composition of the atmosphere. [V. Ramanathan, P. J. Crutzen, and J. T. Kiehl, and D. Rosenfeld, 2001: Aerosols, Climate and the Hydrological Cycle. <I>Science,<I> <B>294</B>, 2119-2124).<BR> <BR> This research was partially supported by National Science Foundation grant ATM 01-36239. Thumbnail

Name:

E-mail Address:

Where will the image be used:
NSF requests users to complete an electronic information form documenting the requestor's planned use of the image. This form provides us with valuable tracking information that will help to shape the contents of the image library in the future. We do not retain any personal information (name, email address other than domain name - “.edu,” “.org,” “.com,” “.gov,” etc.) in our files. If you would prefer not to provide your name and email address, type any letter in those boxes. For information about NSF’s Privacy Policy, please see http://www.nsf.gov/home/pubinfo/privacy.htm.


Image Library HomeNSF HomeOffice of Legislative and Public Affairs Home

The National Science Foundation
4201 Wilson Boulevard
Arlington, Virginia 22230, USA
Tel: 703-292-5111
FIRS: 800-877-8339 ~ TDD: 703-292-5090

Last Modified: Jan 31, 2001