Estimating the number of debris in the geostationary ring

2006 ◽  
Vol 59 (1-5) ◽  
pp. 84-90 ◽  
Author(s):  
Rüdiger Jehn ◽  
Shahram Ariafar ◽  
Thomas Schildknecht ◽  
Reto Musci ◽  
Michael Oswald
Keyword(s):  
Geostationary Ring

Probability of Collisions in the Geostationary Ring

1981 ◽  
Vol 18 (4) ◽  
pp. 361-366 ◽  
Author(s):  
Martin Hechler ◽  
Jozef C. Van der Ha
Keyword(s):  
Geostationary Ring

Orbital sprawl, space debris and the geostationary ring

Space Policy ◽  
1990 ◽  
Vol 6 (3) ◽  
pp. 221-229 ◽  
Author(s):  
Patricia M. Sterns ◽  
Leslie I. Tennen
Keyword(s):  
Space Debris ◽  
Geostationary Ring

scholarly journals GEO-GEO Stereo-Tracking of Atmospheric Motion Vectors (AMVs) from the Geostationary Ring

2020 ◽  
Author(s):  
James L. Carr ◽  
Dong L. Wu ◽  
Jaime Daniels ◽  
Mariel D. Friberg ◽  
Wayne Bresky ◽  
...  
Keyword(s):  
Deep Convection ◽  
Motion Vectors ◽  
Fire Smoke ◽  
Atmospheric Motion ◽  
Image Navigation ◽  
Boundary Layer Dynamics ◽  
Vantage Points ◽  
Height Assignment ◽  
Atmospheric Motion Vectors ◽  
Geostationary Ring

Height assignment is an important problem for satellite measurements of Atmospheric Motion Vectors (AMVs) that are interpreted as winds by forecast and assimilation systems. Stereo methods assign heights to AMVs from the parallax observed between observations from different vantage points in orbit while tracking cloud or moisture features. In this paper, we fully develop the stereo method to jointly retrieve wind vectors with their geometric heights from geostationary satellite pairs. Synchronization of observations between observing systems is not required. NASA and NOAA stereo-winds codes have implemented this method and we have processed large datasets from GOES-16, -17, and Himawari-8. Our retrievals are validated against rawinsonde observations and demonstrate the potential to improve forecast skill. Stereo winds also offer an important mitigation for the loop heat pipe anomaly on GOES-17 during times when warm focal plane temperatures cause infra-red channels that are needed for operational height assignments to fail. We also examine several application areas, including deep convection in tropical cyclones, planetary boundary layer dynamics, and fire smoke plumes, where stereo methods provide insights into atmospheric processes. The stereo method is broadly applicable across the geostationary ring where systems offering similar Image Navigation and Registration (INR) performance as GOES-R are deployed.

scholarly journals GEO-GEO Stereo-Tracking of Atmospheric Motion Vectors (AMVs) from the Geostationary Ring

2020 ◽  
Author(s):  
James L. Carr ◽  
Dong L. Wu ◽  
Jaime Daniels ◽  
Mariel D. Friberg ◽  
Wayne Bresky ◽  
...  
Keyword(s):  
Deep Convection ◽  
Motion Vectors ◽  
Fire Smoke ◽  
Atmospheric Motion ◽  
Image Navigation ◽  
Boundary Layer Dynamics ◽  
Vantage Points ◽  
Height Assignment ◽  
Atmospheric Motion Vectors ◽  
Geostationary Ring

Height assignment is an important problem for satellite measurements of Atmospheric Motion Vectors (AMVs) that are interpreted as winds by forecast and assimilation systems. Stereo methods assign heights to AMVs from the parallax observed between observations from different vantage points in orbit while tracking cloud or moisture features. In this paper, we fully develop the stereo method to jointly retrieve wind vectors with their geometric heights from geostationary satellite pairs. Synchronization of observations between observing systems is not required. NASA and NOAA stereo-winds codes have implemented this method and we have processed large datasets from GOES-16, -17, and Himawari-8. Our retrievals are validated against rawinsonde observations and demonstrate the potential to improve forecast skill. Stereo winds also offer an important mitigation for the loop heat pipe anomaly on GOES-17 during times when warm focal plane temperatures cause infra-red channels that are needed for operational height assignments to fail. We also examine several application areas, including deep convection in tropical cyclones, planetary boundary layer dynamics, and fire smoke plumes, where stereo methods provide insights into atmospheric processes. The stereo method is broadly applicable across the geostationary ring where systems offering similar Image Navigation and Registration (INR) performance as GOES-R are deployed.

scholarly journals Winds of Change for Future Operational AMV at EUMETSAT

2019 ◽  
Vol 11 (18) ◽  
pp. 2111 ◽  
Author(s):  
Borde ◽  
Carranza ◽  
Hautecoeur ◽  
Barbieux
Keyword(s):  
Land Surface ◽  
Motion Vector ◽  
European Organization ◽  
Current Contribution ◽  
The World ◽  
Atmospheric Motion ◽  
Wind Profiles ◽  
New Generation ◽  
Geostationary Ring

EUMETSAT, the European Organization for the Exploitation of Meteorological Satellites, is one of the key contributors to global atmospheric motion vector (AMV) production around the world. Its current contribution includes geostationary satellites at 0.0 and 41.5 degrees east, and several products extracted from the Metop low-orbit satellites. These last ones mainly cover high-latitude regions completing the observations from the geostationary ring. In the upcoming years, EUMETSAT will launch a new generation of geostationary and low-orbit satellites. The imager instruments Flexible Combined Imager (FCI) and METImage will take over the nominal AMV production at EUMETSAT around 2022 and 2024. The enhanced characteristics of these new-generation instruments are expected to increase AMV production and to improve the quality of the products. This paper presents an overview of the current EUMETSAT AMV operational production, together with a roadmap of the preparation activities for the new generation of satellites. The characteristics of the upcoming AMV products are described and compared to the current operational AMV products. This paper also presents a recent investigation into AMV extraction using the Sentinel-3 Sea and Land Surface Temperature Radiometer (SLSTR) instrument, as well as the retrieval of wind profiles from infrared sounders.

scholarly journals A study of the main resonances outside the geostationary ring

2015 ◽  
Vol 56 (3) ◽  
pp. 388-405 ◽  
Author(s):  
Alessandra Celletti ◽  
Cătălin Galeş
Keyword(s):  
Geostationary Ring
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