NDLI: The Time Series of Terra and Aqua MODIS Near-IR Water Vapor Products

Content Provider	IEEE Xplore Digital Library
Author	Bo-Cai Gao Rong-Rong Li
Copyright Year	2008
Description	Author affiliation: Remote Sensing Div., Naval Res. Lab., Washington, DC (Bo-Cai Gao; Rong-Rong Li)
Abstract	Two Moderate Resolution Imaging SpectroRadiometer (MODIS) instruments [1] on the NASA Terra and Aqua Spacecraft platforms are currently operational for global remote sensing of the land, ocean and atmosphere. Both MODIS instruments are equipped with channels located within and around the 0.94-micron water vapor band absorption region for water vapor measurements over reflective land surfaces, clouds, and oceanic regions with sunglint. We have developed an algorithm to retrieve column water vapor amount using ratios of water vapor absorption channels with nearby atmospheric window channels [2]. The daily `pixel-based' Level 2 near-IR water vapor product at the 1-km spatial resolution of the MODIS instrument, and the daily, 8-day, and monthly-mean Level 3 near-IR water vapor products at a 1deg by 1deg latitude-longitude grid globally are routinely produced at a NASA computing facility [3]. We have analyzed more than eight years of Terra MODIS and five years of Aqua MODIS Level 3 monthly-mean near-IR water vapor products. Major observations on spatial distributions and temporal variations of water vapor in different geographic regions are described in this paper. Areas severely affected by the 2002 El Nino phenomenon in southeastern Australia and southeastern Asia can be detected from the Level 3 monthly-mean data sets. The 2007 drought areas in southeastern US can also be seen. It is concluded that the MODIS near-IR water vapor products can be useful for establishing a long term water vapor climatology over global land surface areas.
File Size	784824
File Format	PDF
ISBN	9781424428076
DOI	10.1109/IGARSS.2008.4779314
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-07-07
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	MODIS Instruments NASA Absorption Land surface Sea surface Space vehicles Remote sensing Oceans Atmosphere water vapor
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in