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You searched on: Author: Raju Datla

Displaying records 1 to 10 of 104 records.
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1. Optical Passive Sensor Calibration for Satellite Remote Sensing and the Legacy of NOAA, NASA and NIST Cooperation
Series: Journal of Research (NIST JRES)
Report Number: 119.008
Published: 5/14/2015
Author: Raju Vsnu Datla
Abstract: This paper traces the development of physical standards and measurement methodologies for calibrating satellite based optical sensors in the civilian sector for remote sensing the earth, atmosphere and oceans from the inception of satellite era ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913237

2. Infrared Optical Properties of Materials
Series: Special Publication (NIST SP)
Report Number: 250-94
Published: 2/24/2015
Authors: Simon Grant Kaplan, Leonard M Hanssen, Raju Vsnu Datla
Abstract: This document describes the Fourier Transform Infrared Spectrophotometry (FTIS) Facility at the Sensor Science Division (SSD) of the National Institute of Standards and Technology (NIST) to provide the infrared optical properties of materials (IR ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=916147

3. Experimental measurements and noise analysis of a cryogenic radiometer
Published: 7/10/2014
Authors: Solomon I Woods, Timothy M. Jung, Adriaan C. Carter, Raju VSNU Datla , Stephen M. Carr
Abstract: A cryogenic radiometer device, intended for use as part of an electrical-substitution radiometer, was measured at low temperature. The device consists of a receiver cavity mechanically and thermally connected to a temperature-controlled stage through ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914915

4. Optical Passive Sensor Calibration for Satellite Remote Sensing and the Legacy of NOAA and NIST Cooperation
Series: Journal of Research (NIST JRES)
Report Number: 119.008
Published: 6/26/2014
Authors: Raju VSNU Datla , Michael Weinreb, Joseph Paul Rice, Bettye C Johnson, Eric L Shirley, Changyong Cao
Abstract: This paper traces the cooperative effort of the scientists at the National Oceanic and Atmospheric Administration (NOAA) and the National Institute of Standards and Technology (NIST) for improving the calibration of operational satellite sensors ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914026

5. Lunar Spectral Irradiance and radiance (LUSI): new instrumentation to characterize the Moon as a space-based radiometric standard
Series: Journal of Research (NIST JRES)
Report Number: 117.011
Published: 7/17/2012
Authors: Allan W. Smith, Steven Ray Lorentz, Raju Vsnu Datla, Thomas C. Stone
Abstract: The need to understand and monitor climate change has led to proposed radiometric accuracy requirements for space-based remote-sensing instruments that are very stringent and currently beyond the reach of many Earth orbiting instruments. A major ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903135

6. NIST TXR Calibration of the GOES_R External Calibration Target (ECT) for the GOES_R Advanced Baseline Imager (ABI) Program
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7797
Published: 12/1/2011
Authors: Raju Vsnu Datla, Joseph Paul Rice
Abstract: The GOES_R/ ECT located at the ABI sensor test facility of ITT/Rochester was tested for its emissivity and radiance properties by deploying the NIST Thermal Infrared Transfer Radiometer (TXR) to the ABI cryogenic chamber at ITT/Rochester. The NIS ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909242

7. Workshop on Bridging Satellite Climate Data Gaps
Series: Journal of Research (NIST JRES)
Published: 2/16/2011
Authors: Catherine C Cooksey, Raju Vsnu Datla
Abstract: Detecting the small signals of climate change for the most essential climate variables requires that satellite sensors make highly accurate and consistent measurements. Data gaps in the time series (such as possible launch delay or failure) or incon ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905860

8. Report on the NIST workshop of December 10, 2009: calibration strategies for bridging possible climate data gaps
Published: 8/12/2010
Authors: Raju Vsnu Datla, Joseph Paul Rice, Catherine C Cooksey, Kurtis J Thome, Robert Barnes, Changyong Cao
Abstract: A one day workshop was held on December 10, 2009 at the National Institute of Standards and Technology to address the issue of data gaps in the time series of satellite measurements. Such gaps can occur due to launch delay or failure, or inconsisten ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906283

9. Demonstration of a Meissner-Effect Transition Edge Sensor
Published: 7/26/2010
Authors: Solomon I Woods, Stephen M. Carr, Timothy M. Jung, Adriaan C. Carter, Raju Vsnu Datla
Abstract: We have built and tested a transition edge sensor which monitors temperature change by measuring magnetic flux expulsion from a superconducting element. Flux change is sensed by a dc SQUID coupled to the element using a flux transformer in a gradiom ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904199

10. Calibration of Ultra-Low Infrared Power at NIST
Published: 7/20/2010
Authors: Solomon I Woods, Stephen M. Carr, Adriaan C. Carter, Timothy M. Jung, Simon Grant Kaplan, Raju Vsnu Datla
Abstract: The Low Background Infrared (LBIR) facility has developed and tested the components of a new detector for calibration of infrared powers down to 1 pW, with 0.1% uncertainty. Calibration of such low powers could be valuable for the quantitative study ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906008



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