Differential Radiometers Using Fabry–Perot Interferometric Technique for Remote Sensing of Greenhouse Gases

Autor: E. M. Georgieva, William S. Heaps, Emily L. Wilson

Publikováno v: IEEE Transactions on Geoscience and Remote Sensing. 46:3115-3122

A new type of remote-sensing radiometer based upon the Fabry-Perot (FP) interferometric technique has been developed at NASA's Goddard Space Flight Center and tested from both ground and aircraft platforms. The sensor uses direct or reflected sunligh

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::41123311427d8b67e7d58a04d17bb0bf
https://doi.org/10.1109/tgrs.2008.921570

High-Precision Measurements of the Solar Diameter and Oblateness by the Solar Disk Sextant (SDS) Experiment

Autor: L. Twigg, William S. Heaps, A. Egidi, Walter R. Hoegy, B. Caccin, Sabatino Sofia

Publikováno v: Solar Physics. 235:407-418

We reduce and analyze, in a uniform way, all of the data obtained by the Solar Disk Sextant (SDS) experiment, concerning high-precision measurements of the solar radius and oblateness, in the bandwidth 590 {–} 670 nm, made onboard stratospheric bal

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ef31f1dc97b9e3d0a4e62c9949f29af7
https://doi.org/10.1007/s11207-006-0073-x

Variation of the diameter of the Sun as measured by the Solar Disk Sextant (SDS)

Autor: Gérard Thuillier, U. J. Sofia, William S. Heaps, T. M. Girard, Sabatino Sofia, L. W. Twigg

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2013, 436, pp.2151-2169. 〈10.1093/mnras/stt1721〉
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2013, 436, pp.2151-2169. ⟨10.1093/mnras/stt1721⟩
Monthly Notices of the Royal Astronomical Society, 2013, 436, pp.2151-2169. ⟨10.1093/mnras/stt1721⟩

The balloon-borne Solar Disk Sextant (SDS) experiment has measured the angular size of the Sun on seven occasions spanning the years 1992 to 2011. The solar half-diameter -- observed in a 100-nm wide passband centred at 615 nm -- is found to vary ove

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c88c0a2206d4efa612012a9437521f73
https://hal.archives-ouvertes.fr/hal-00864316

New broadband lidar for greenhouse carbon dioxide gas sensing in the Earth's atmosphere

Autor: William S. Heaps, E. M. Georgieva, Wen Huang

Publikováno v: SPIE Proceedings.

We present demonstration of a novel broadband lidar technique capable of dealing with the atmospherically induced variations in CO2 absorption using a Fabry-Perot based detector and a broadband laser. The Fabry-Perot solid etalon in the receiver part

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d6c076c4f4e4a55675b0fac6cbfe1102
https://doi.org/10.1117/12.897552

Raman dial measurements of stratospheric ozone in the presence of volcanic aerosols

Autor: Upendra N. Singh, Michael R. Gross, Richard Ferrare, Thomas J. McGee, William S. Heaps

Publikováno v: Geophysical Research Letters. 20:955-958

Since the eruption of Mt. Pinatubo in June, 1991, measurements of atmospheric species which depend on Rayleigh scattering of radiation, have been severely compromised where the volcanic aerosol cloud exists. For the GSFC stratospheric ozone lidar, th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1e1c6c9d7862b2c9b72b6030c72ec845
https://doi.org/10.1029/93gl00751