3 edition of Field tests of the real-data acquisition system for the NASA/LaRC diffential absorption lidar found in the catalog.
Field tests of the real-data acquisition system for the NASA/LaRC diffential absorption lidar
|Statement||by Carolyn Butler ; submitted by Earl C. Kindle ; prepared for the National Aeronautics and Space Administration, Langley Research Center.|
|Series||[NASA-CR] -- 174020., Technical report -- no. GSTR-84-12., NASA contractor report -- NASA CR-174020., Technical report (Old Dominion University. Dept. of Geophysical Sciences) -- no. GSTR-84-12.|
|Contributions||Butler, Carolyn F., Old Dominion University. Research Foundation., Langley Research Center.|
|The Physical Object|
Typical mapping lidar systems bounce a laser light pulse off a surface and record the time it takes for the light to return to determine the distance it traveled. Plants, water, bare exposed earth, and the bottom of a shallow sea each absorb and reflect different colors (wavelengths) of light in different ways. LIDAR SYSTEM The DC-8 manning lidar system comprises four major modules: laser transmitter, telescope receiver, data acquisition system, and scanning mirror pod. The first three modules are integrated into a standard DC-8 aircraft equipment rack. The telescope and laser are mounted on top of File Size: KB.
The Lidar Atmospheric Sensing Experiment (LASE) is a highly engineered and autonomous Differential Absorption Lidar (DIAL) system developed at NASA Langley Research Center (LaRC. CERES Science Team Meeting, November, Outline • Current capability of spaceborne aerosol lidars • Backscatter lidar issues • High Spectral Resolution Lidar (HSRL) • Multiwavelength (“3β+2α”) Aerosol Retrievals • Estimated spaceborne system parameters • Recommended post satellite mission • SummaryFile Size: 1MB.
LITE was a three-wavelength backscatter lidar developed by NASA Langley Research Center to fly on the Space Shuttle to support advancement of knowledge of Earth as a system to meet the chanllenges of environmental changes, and to improve life on our planet. The LIDAR did not return ranging information at the poles, nor was data coverage complete at lower latitudes. Therefore before performing a spherical harmonic expansion of the lunar radii it was necessary to 'fill in' the polar regions (~3% of the planet's surface .
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Get this from a library. Field tests of the real-data acquisition system for the NASA/LaRC differential absorption lidar: progress report for the period January 1, to J [Earl C Kindle; Carolyn F Butler; Old Dominion University. Research Foundation.; Langley Research Center.].
A data acquisition system (DAS) for the NASA/LaRC Differential Absorption Lidar (DIAL) was documented. This DAS is a dual LSI 11/23 set up where one computer retrieves data from the digitizers and other peripheral units, stores that data on magnetic tape, generates aerosol grayscales on a Trilog printer and passes data to the second computer.
The NASA Langley airborne UV DIAL system is a lidar instrument that sends pulses of laser radiation at different wavelengths into the atmosphere to measure ozone and also simultaneously measure aerosols and clouds. The laser beams are pointed both upwards and downwards out of the aircraft.
The LASE system has proven to be a reliable, accurate, and sensitive water vapor profiler with the ability to measure water vapor mixing ratios over a large dynamic range ( g/kg to 20 g/kg). Aerosol backscatter ratios can be measured from ground to 20 km with a vertical resolution of 30 m and a horizontal resolution of 40 m.
With the DIAL technique, the gas concentration profile is determined by analyzing the lidar backscatter signals for laser wavelengths tuned “on” (on) and “off” (off) an absorption line of the gas of interest. The absorption regions are in the UV near nm.
The Lidar Applications Group is based out of the Science Directorate at NASA’s Langley Research Center. The research campaigns and experiments performed in the Lidar group use Lidar technology on various aircraft to learn more about our atmosphere, what’s in it, and how it’s changing.
The technology and applications of the differential absorption lidar (DIAL) technique have progressed significantly since the first DIAL measurements of Schotland , and airborne DIAL measurements of ozone and water vapor are frequently being made in a wide range of field experiments.
In addition, plans are underway to develop DIAL systems for use on satellites for continuous global Cited by: The flash lidar used in FT1 was provided by NASA Langley Research Center. This lidar was procured from Advanced Scientific Concepts and then retrofitted with a real-time data collection and timing system.
The lidar is comprised of a micron, diode-pumped Nd:YAG laser source and receiver optics. The laser source is diffused to.
Field Test Description To further mature LIDAR TRN, as well as other TRN approaches, ALHAT conducted a field test in June and July of For this test, a fixed-wing aircraft was outfitted with a suite of TRN sensors, along with sensors to provide ground truth position and attitude.
Abstract-NASA ESTO’s Instrument Incubator Program has funded a 3 year program to develop a ground-based 2-micron Differential Absorption Lidar (DIAL) CO2 profiling system. This technology development program, towards the eventual development of a space-based DIAL system, involves the design, development, evaluation, and fielding of a ground.
A parametric analysis of the Shuttle-borne differential absorption lidar concept for the measurement of atmospheric trace constituent profiles in the nadir viewing mode is presented. The criterion of an optimum constituent optical depth is developed and applied to generate estimates of range resolved measurement errors.
These errors emphasize the fundamental limitations for establishing the. Tikhonov Advanced Regularization Algorithm (TiARA) is used for the analysis of data acquired by the NASA Langley Research Center (LaRC) High-Spectral Resolution Lidar (HSRL-2).
The purpose of TiARA is to retrieve the aerosol microphysical parameters using HSRL-2 data, and thus to offer a possibility of obtaining the quantitative measure of the spatial and temporal variation of aerosol.
An airborne differential absorption lidar (DIAL) system has been developed at the NASA Langley Research Center for remote measurements of atmospheric water vapor (H(2)O) and aerosols. Airborne differential absorption lidar system for measurements of atmospheric water vapor and aerosols Field tests of the real-data acquisiton system for the NASA-LaRC differential absorption.
InHSRL capabilities were incorporated into the airborne DIAL system providing additional and more quantitative multi-wavelength measurements of aerosol and cloud backscatter (nm, nm, nm), extinction (nm), and depolarization (nm, nm, nm), simultaneously in both directions above and below the aircraft.
LIDAR is the optical analogue of RADAR (RAdio Detection And Ranging). The only thing that separates LIDAR from RADAR is the energy source. LIDAR’s source being a laser in the optical part of the electromagnetic spectrum.
LIDARs are active remote sensors since they include the light source on which the measurement depends. NASA's Lidar Atmospheric Sensing Experiment (LASE) system is an airborne DIAL (Differential Absorption Lidar) system used to measure water vapor, aerosols, and clouds throughout the troposphere.
LASE probes the atmosphere using lasers to transmit light in the nm absorption band of water vapor. We tailor our data acquisition and control system to provide customizable, accurate, versatile, and reliable propulsion test data to meet the needs of our : Judy Corbett.
NASA LaRC and Boeing played key roles. Besides above agencies, industry collaborators, and academia had experiments on MISSE 7B. NASA LaRC provided a flight worthy package with laser and lidar components along with other logistics support.
This effort in NASA LaRC was a follow-on effort to MISSE 6 mission . Langley Research Center (LaRC) UV Laser Wavelength Conversion Objectives Develop wavelength conversion technology to convert a Nd:YAG laser into an efficient, high-energy, tunable, pulsed UV laser in the nm range capable of space-based operation in future NASA missions including Differential Absorption Lidar (DIAL) measurement of Size: 1MB.
Get this from a library! Theory and operation of the real-time data acquisition system for the NASA-LaRC differential absorption lidar (DIAL): final report for the period January 1, to Decem [Carolyn F Butler; Langley Research Center.].Get this from a library!
Development and operation of a real-time data acquisition system for the NASA-LaRC Differential Absorption Lidar. [Carolyn F Butler; Earl C Kindle; Old Dominion University. Department of Geophysical Sciences.; Langley Research Center.]. Leave this field blank.
Program. Airborne Missions; NASA Headquarters; NASA Centers; NASA Langley Research Center; NASA Wallops Flight Facility; Student Airborne Research Program (SARP) National Suborbital Research Center (NSRC) Research Opportunities; LIDAR.