Please wait, while we are loading the content...
| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Di Girolamo, P. |
| Copyright Year | 2000 |
| Description | Author affiliation: DIFA, Basilicata Univ., Potenza, Italy (Di Girolamo, P.) |
| Abstract | Ground-based water vapor measurements by lidar have been performed in Potenza, Southern Italy, by the application of the Raman and the DIAL techniques. Raman measurements have been accomplished through the simultaneous detection of the backscattered radiation in the vibrational Raman bands of water vapor and molecular nitrogen as stimulated by a 355 nm beam, while DIAL measurements at 720 nm have been accomplished by means of a dye laser transmitter. Water vapor measurements in the troposphere up to approximately 10 km above station level have been obtained through the simultaneous application of the Raman and DIAL techniques. Reported measurements have been performed on 18 February 1997, both in the early evening and at night-time. The deviation between DIAL and Raman measurements is found not to exceed 25% up to 7.5 km, while the deviation between Raman and radiosonde data keeps smaller than 20% up to 7 km. The large deviation between Raman and radiosonde data above 7 km is to be attributed to the limited accuracy (dry bias) of the Vaisala humicap sensor at low humidity levels for temperatures below -30/spl deg/C. A further goal of the presentation is to define a calibration procedure for Raman measurements based on the comparison with simultaneous DIAL measurements. The estimate of the Raman calibration coefficient on the basis of simultaneous and independent water vapor DIAL measurements is more reliable than the traditional approach based on the comparison with radiosonde data. |
| Starting Page | 1452 |
| Ending Page | 1454 |
| File Size | 293494 |
| Page Count | 3 |
| File Format | |
| ISBN | 0780363590 |
| DOI | 10.1109/IGARSS.2000.857237 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2000-07-24 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Laser radar Vibration measurement Performance evaluation Temperature sensors Calibration Radiation detectors Nitrogen Laser beams Molecular beams Molecular beam applications |
| 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...
|