English
Related papers

Related papers: Evaluating Earth-Observing Satellite Sampling Effe…

200 papers

In this paper we investigate systems previously identified to exhibit transit timing variations (TTVs) in Kepler data, with the goal of predicting the expected improvements to the mass and eccentricity constraints that will arise from…

Earth and Planetary Astrophysics · Physics 2019-03-20 Max Goldberg , Sam Hadden , Matthew J. Payne , Matthew J. Holman

In recent years, there has been growing interest in using Precipitable Water Vapor (PWV) derived from Global Positioning System (GPS) signal delays to predict rainfall. However, the occurrence of rainfall is dependent on a myriad of…

Atmospheric and Oceanic Physics · Physics 2020-01-08 Shilpa Manandhar , Soumyabrata Dev , Yee Hui Lee , Yu Song Meng , Stefan Winkler

Low Earth Orbit (LEO) satellite communication is a promising solution for global wireless coverage, especially in underserved and remote areas. However, the high relative velocity of LEO satellites induces significant Doppler shifts that…

Systems and Control · Electrical Eng. & Systems 2025-07-01 Islam M. Tanash , Risto Wichman , Nuria Gonzalez-Prelcic

Humans excel at detecting interesting patterns in images, for example those taken from satellites. This kind of anecdotal evidence can lead to the discovery of new phenomena. However, it is often difficult to gather enough data of…

Atmospheric and Oceanic Physics · Physics 2020-04-22 Stephan Rasp , Hauke Schulz , Sandrine Bony , Bjorn Stevens

The main objective of this study is to combine remote sensing and machine learning to detect soil moisture content. Growing population and food consumption has led to the need to improve agricultural yield and to reduce wastage of natural…

Image and Video Processing · Electrical Eng. & Systems 2019-07-09 Natalia Efremova , Dmitry Zausaev , Gleb Antipov

Context. Solar-like oscillations exhibit a regular pattern of frequencies. This pattern is dominated by the small and large frequency separations between modes. The accurate determination of these parameters is of great interest, because…

Instrumentation and Methods for Astrophysics · Physics 2015-06-17 René Kiefer , Ariane Schad , Wiebke Herzberg , Markus Roth

A lot of work has been done to reach the best possible performance of predictive models on images. There are fewer studies about the resilience of these models when they are trained on image datasets that suffer modifications altering their…

Computer Vision and Pattern Recognition · Computer Science 2023-01-19 Pau Gallés , Katalin Takats , Javier Marin

The Large Synoptic Survey Telescope (LSST) will provide for unbiased sampling of variability properties of objects with $r$ mag $<$ 24. This should allow for those objects whose variations reveal their orbital periods ($P_{orb}$), such as…

Instrumentation and Methods for Astrophysics · Physics 2019-01-09 Michael A. C. Johnson , Poshak Gandhi , Adriane P. Chapman , Luc Moreau , Philip A. Charles , William I. Clarkson , Adam B. Hill

In this study, a novel machine learning algorithm is presented for disaggregation of satellite soil moisture (SM) based on self-regularized regressive models (SRRM) using high-resolution correlated information from auxiliary sources. It…

Computer Vision and Pattern Recognition · Computer Science 2016-07-19 Subit Chakrabarti , Jasmeet Judge , Anand Rangarajan , Sanjay Ranka

Computers are widely utilized in today's weather forecasting as a powerful tool to leverage an enormous amount of data. Yet, despite the availability of such data, current techniques often fall short of producing reliable detailed storm…

Computer Vision and Pattern Recognition · Computer Science 2017-03-08 Yu Zhang , Stephen Wistar , Jia Li , Michael Steinberg , James Z. Wang

Given the critical roles that satellites play in national defense, public safety, and worldwide communications, finding ways to determine satellite trajectories is a crucially important task for improved space situational awareness.…

Computer Vision and Pattern Recognition · Computer Science 2023-10-03 Rohit Khorana

This study demonstrates, for the first time, how a network of cellular base stations (BSs) - the infrastructure of mobile radio networks - can be used as a distributed opportunistic radar for rainfall remote sensing. By adapting…

Rainfall precipitation maps are usually derived based on the measurements collected by classical weather devices, such as rain gauges and weather stations. This article aims to show the benefits obtained by opportunistic rainfall…

Recently, new solar model atmospheres have been developed to replace classical 1D LTE hydrostatic models and used to for example derive the solar chemical composition. We aim to test various models against key observational constraints. In…

Solar and Stellar Astrophysics · Physics 2015-06-15 Tiago M. D. Pereira , Martin Asplund , Remo Collet , Irina Thaler , Regner Trampedach , Jorrit Leenaarts

In this work, an detection strategy based on multiple antennas with beam sweeping is developed to detect UAV's potential transmission in wireless networks. Specifically, suspicious angle range where the UAV may present is divided into…

Information Theory · Computer Science 2019-04-02 Jinsong Hu , Yongpeng Wu , Riqing Chen , Feng Shu , Jiangzhou Wang

A novel algorithm is developed to downscale soil moisture (SM), obtained at satellite scales of 10-40 km by utilizing its temporal correlations to historical auxiliary data at finer scales. Including such correlations drastically reduces…

Computer Vision and Pattern Recognition · Computer Science 2016-01-22 Subit Chakrabarti , Jasmeet Judge , Tara Bongiovanni , Anand Rangarajan , Sanjay Ranka

We test a sample of satellites of isolated primary galaxies, extracted from the 2dF Galaxy Redshift Survey (2dFGRS), for any tendency to be aligned along (or against) the primary-to-satellite radius vector. If tidal effects induce such an…

Astrophysics · Physics 2009-11-07 G. M. Bernstein , P. Norberg

We use 20 years of magnetic field measurements from the Oersted, CHAMP and Swarm satellite missions, supplemented by calibrated platform magnetometer data from the CryoSat2 satellite, to study time variations of the Earth's core field at…

Earth and Planetary Astrophysics · Physics 2021-11-30 Magnus Danel Hammer , Christopher C. Finlay , Nils Olsen

The objective of this research is to develop techniques for assimilating GOES-R Series observations in precipitating scenes for the purpose of improving short-term convective-scale forecasts of high impact weather hazards. Whereas one…

Atmospheric and Oceanic Physics · Physics 2020-04-20 Kyle A. Hilburn , Imme Ebert-Uphoff , Steven D. Miller

Solar activity plays a quintessential role in influencing the interplanetary medium and space-weather around the Earth. Remote sensing instruments onboard heliophysics space missions provide a pool of information about the Sun's activity…