Please wait, while we are loading the content...
| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Thome, K. Kuester, M. Reagan, J. |
| Copyright Year | 2002 |
| Description | Author affiliation: Remote Sensing Group, Arizona Univ., Tucson, AZ, USA (Thome, K.; Kuester, M.) |
| Abstract | Current multi-channel solar radiometers now allow for near-simultaneous collection of transmitted solar radiation in multiple spectral bands. Such simultaneous measurements are necessary for understanding the spectral nature of highly temporal phenomena such as cirrus clouds. Measurements of spectral optical depth from several locations in the desert southwest have been made by the University of Arizona for more than 10 years under both clear and cloudy conditions. Studies of the data collected under cirrus conditions indicate, as expected, that the transmittance through cirrus is nearly spectrally flat over a range of optical thicknesses. A recent data set collected at Ivanpah Playa, Nevada included measurements through a layer of cirrus clouds of varying thickness for a period of nearly three hours. These data were preceded by a two hour period of cloudless conditions with relatively stable atmospheric aerosol loading. Results from this data set indicate that the cirrus optical depth is spectrally flat to better than 6% over a range of optical depths from 0.10 to 0.30. Because of the spectrally flat nature of the cloud radiative properties, it is possible to use these clouds as hand-to-hand radiometric calibration targets for multichannel radiometers and two-channel lidar systems. The possible accuracy of such calibrations is presented based on the historical measurements of cirrus cloud transmittance. |
| Sponsorship | IEEE IEEE Geosci. & Remote Sensing Soc. Canadian Remote Sensing Soc. Univ. Waterloo Natural Resources Canada (NRCan) Canadian Space Agency (CSA) Environ. Canada NASA Nat. Oceanic & Atmos. Adm. (NOAA) Office of Naval Res.(ONR) Nat. Space Dev. Agency of Japan (NASDA) Nat. Polar-orbiting Environ. Satellite Syst. (NPOESS) |
| Starting Page | 2017 |
| Ending Page | 2019 |
| File Size | 342733 |
| Page Count | 3 |
| File Format | |
| ISBN | 078037536X |
| DOI | 10.1109/IGARSS.2002.1026431 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2002-06-24 |
| Publisher Place | Canada |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Clouds Optical scattering Optical sensors Light scattering Calibration Radiometers Optical filters Thickness measurement Laser radar Ice |
| Content Type | Text |
| Resource Type | Article |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| 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 |
|
Loading...
|