Zobrazeno 1 - 10
of 293
pro vyhledávání: '"Refaat Tamer"'
Autor:
Yu Jirong, Petros Mulugeta, Singh Upendra, Refaat Tamer, Reithmaier Karl, Remus Ruben, Johnson William
Publikováno v:
EPJ Web of Conferences, Vol 237, p 03013 (2020)
NASA Langley Research Center (LaRC) developed a double pulsed, high energy 2-micron Integrated Path Differential Absorption (IPDA) lidar instrument to measure atmospheric CO2 column density. The 2-μm double pulsed IPDA lidar was flown ten times in M
Externí odkaz:
https://doaj.org/article/6b094465ea7c41229c79618b4986268f
Publikováno v:
EPJ Web of Conferences, Vol 237, p 01013 (2020)
An advanced detection system, based on mercury cadmium telluride avalanche photodiodes array, was implemented within a 2-μm lidar. Detection system characterization was conducted for performance evaluation including settling time, noise-equivalent-p
Externí odkaz:
https://doaj.org/article/0d289022a16b4ba29666f8656d66c0d1
Autor:
Refaat, Tamer, El-Zoklah, Marwa
Publikováno v:
Open House International, 2024, Vol. 49, Issue 4, pp. 752-772.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/OHI-05-2023-0114
Publikováno v:
EPJ Web of Conferences, Vol 176, p 05001 (2018)
An airborne double-pulse 2-μm Integrated Path Differential Absorption (IPDA) lidar has been developed at NASA LaRC for measuring atmospheric CO2. IPDA was validated using NASA B-200 aircraft over land and ocean under different conditions. IPDA evalu
Externí odkaz:
https://doaj.org/article/3880a72dc13b4ff0a0e1513a4d596762
Autor:
Singh Upendra N., Refaat Tamer F., Ismail Syed, Petros Mulugeta, Davis Kenneth J., Kawa Stephan R., Menzies Robert T.
Publikováno v:
EPJ Web of Conferences, Vol 176, p 02001 (2018)
Modeling of a space-based high-energy 2-μm triple-pulse Integrated Path Differential Absorption (IPDA) lidar was conducted to demonstrate carbon dioxide (CO2) measurement capability and to evaluate random and systematic errors. A high pulse energy l
Externí odkaz:
https://doaj.org/article/709c87c0f0f44aebab53db34c0e57b90
Autor:
Petros Mulugeta, Refaat Tamer F., Singh Upendra N., Yu Jirong, Antill Charles, Remus Ruben, Taylor Bryant D., Wong Teh-Hwa, Reithmaier Karl, Lee Jane, Ismail Syed, Davis Kenneth J
Publikováno v:
EPJ Web of Conferences, Vol 176, p 01009 (2018)
An advanced airborne triple-pulse 2-μm integrated path differential absorption (IPDA) lidar is under development at NASA Langley Research Center that targets both carbon dioxide (CO2) and water vapor (H2O) measurements simultaneously and independent
Externí odkaz:
https://doaj.org/article/e07f3206bfc1448b98971bf40386eb0d
Publikováno v:
EPJ Web of Conferences, Vol 119, p 02001 (2016)
The two-micron wavelength is suitable for monitoring atmospheric water vapor and carbon dioxide, the two most dominant greenhouse gases. Recent advances in 2-μm laser technology paved the way for constructing state-of-the-art lidar transmitters for
Externí odkaz:
https://doaj.org/article/4ae3ca0908f34a5696c375d365ac6bae
Publikováno v:
EPJ Web of Conferences, Vol 119, p 05006 (2016)
An advanced double-pulse 2-μm integrated path differential absorption lidar has been developed at NASA Langley Research Center for measuring atmospheric carbon dioxide. The instrument utilizes a state-of-the-art 2-μm laser transmitter with tunable
Externí odkaz:
https://doaj.org/article/faf396691ab3441682e9cd4c696e91c1
Autor:
Yu Jirong, Petros Mulugeta, Refaat Tamer, Reithmaier Karl, Remus Ruben, Singh Upendra, Johnson Will, Boyer Charlie, Fay James, Johnston Susan, Murchison Luke
Publikováno v:
EPJ Web of Conferences, Vol 119, p 03004 (2016)
An airborne 2-micron double-pulsed Integrated Path Differential Absorption (IPDA) lidar has been developed for atmospheric CO2 measurements. This new instrument has been flown in spring of 2014 for a total of ten flights with 27 flight hours. This IP
Externí odkaz:
https://doaj.org/article/95888e5b28084f2f9901e23bad07ff73
Publikováno v:
In Results in Engineering June 2024 22