Results 91 to 100 of about 757,045 (352)
Applying Hpo Indices to Empirical Thermospheric Density Models During Geomagnetic Storms
Abstract Accurate atmospheric drag modeling is essential for precise orbit determination and prediction of Low Earth Orbit satellites. A key component is the thermospheric density, typically estimated using empirical models driven by geomagnetic activity indices such as the 3‐hr Kp or ap.
Kemin Zhu +5 more
wiley +1 more source
Abstract Terrestrial water storage (TWS) plays an important role in describing the Earth system, as water availability is decisive for ecosystems and human development. Since 2002, the Gravity Recovery and Climate Experiment (GRACE) and its Follow‐On (GRACE‐FO) mission have measured TWS anomalies with unprecedented accuracy, enabling a leap in ...
Luis Q. Gentner +5 more
wiley +1 more source
GNSS seminar 2017 at the Institute of Geodesy in Brno, Brussels, 6 June 2017
The 20th edition of the seminar Satellite methods in geodesy and cadastre – GNSS seminar 2017 was organized by the Institute of Geodesy of the Faculty of Civil Engineering, Brno University of Technology and held on February 2nd 2017.
Danijel Šugar, Miljenko Lapaine
doaj
Participation of Employees and Students of the Faculty of Geodesy and Cartography in Polar Research
This year the Faculty of Geodesy and Cartography, Warsaw University of Technology celebrates its 95th jubilee, which provides an opportunity to present the Faculty’s rich traditions in polar research.
Pasik Mariusz +7 more
doaj +1 more source
ABSTRACT The browning of freshwater ecosystems is increasingly evident in temperate and northern regions, with widespread ramifications for lake physics, chemistry, and biology. Contrasting results on how freshwater browning may impact fish have been reported, but there has been no comprehensive examination of how browning may cause cascading effects ...
Allison M. Roth +26 more
wiley +1 more source
Satellite orbit determination using satellite gravity gradiometry observations in GOCE mission perspective [PDF]
Between the years 2004 and 2005 the launch of the first gradiometric satellite is planned. This satellite will be an important element of the Gravity Field and Steady – State Ocean Circulation Explorer Mission (GOCE).
A. Bobojć, A. Drożyner
doaj
Applications of satellite and marine geodesy to operations in the ocean environment [PDF]
The requirements for marine and satellite geodesy technology are assessed with emphasis on the development of marine geodesy. Various programs and missions for identification of the satellite geodesy technology applicable to marine geodesy are analyzed ...
Fubara, D. M., Mourad, A. G.
core +1 more source
Lagrangian atmospheric models were used in conjunction with ecophysiological factors to reconstruct the path and meteorological conditions of a long‐range migration flight of spruce budworm moths to Newfoundland, Canada. Moths travelled under high winds and warm temperatures that favoured their migratory flight until encountering cooler temperatures ...
Philippe Barnéoud +3 more
wiley +1 more source
LARES Satellite Thermal Forces and a Test of General Relativity
We summarize a laser-ranged satellite test of frame-dragging, a prediction of General Relativity, and then concentrate on the estimate of thermal thrust, an important perturbation affecting the accuracy of the test.
Brooks, Jason +13 more
core +1 more source
On Multilevel Energy‐Based Fragmentation Methods
We investigate the working equations of energy‐based fragmentation methods and present ML‐SUPANOVA, a Möbius‐inversion‐based multilevel fragmentation scheme that enables adaptive, quasi‐optimal truncations to efficiently approximate Born‐Oppenheimer potentials across hierarchies of electronic‐structure methods and basis sets.
James Barker +2 more
wiley +1 more source

