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Showing papers in "Advances in Space Research in 2010"


Journal ArticleDOI
TL;DR: In this paper, the results of the cross-validation of a multivariate logistic regression model using remote sensing data and GIS for landslide hazard analysis on the Penang, Cameron, and Selangor areas in Malaysia were presented.

284 citations


Journal ArticleDOI
TL;DR: In this paper, the authors compared the 10-day solutions of the GRACE project with the monthly solutions (CSR, GFZ and JPL) and showed substantial differences.

246 citations


Journal ArticleDOI
TL;DR: The CDDIS data system and its archive have become increasingly important to many national and international science communities, particularly several of the operational services within the International Association of Geodesy and its observing system.

228 citations


Journal ArticleDOI
TL;DR: The organizational aspects of the IDS are addressed, there is now a wide international participation within IDS that should lead to future improvements in DORIS analysis strategies and DORis-derived geodetic products.

141 citations


Journal ArticleDOI
TL;DR: The Global Navigation Satellite System (GNSS) has been a very powerful and important contributor to all scientific questions related to precise positioning on Earth's surface, particularly as a mature technique in geodesy and geosciences as discussed by the authors.

115 citations


Journal ArticleDOI
TL;DR: In this work, the standard reaction wheel control and angular momentum unloading schemes are adopted for all the reaction wheel configurations and are presented together with their governing equations, making them fully amenable to numerical treatments.

114 citations


Journal ArticleDOI
TL;DR: In this article, the authors used the log-residual method (LRM) with the minimum noise fraction (MNF) transformation to create a pixel purity index (PPI) which was used to extract the most spectrally pure pixels from multispectral images.

101 citations


Journal ArticleDOI
TL;DR: In this article, the authors describe the recomputation of a time series of orbits that rely on a consistent set of reference frames and geophysical models, and using the latest altimeter corrections for TOPEX, Jason-1, and Jason-2 from September 1992 to May 2009, they find a global rate in mean sea level of 3.0 ± 0.4 mm/yr.

95 citations


Journal ArticleDOI
TL;DR: In this paper, the interhemispheric coupling of the middle atmosphere general circulation is characterized by a global anomaly pattern of the zonal-mean temperature, which is unequivocally proven within the framework of a zonally symmetric model that excludes any additional effects due to resolved waves and non-zonally propagating gravity waves.

93 citations


Journal ArticleDOI
TL;DR: In this article, the authors examined the spatial and temporal variations in aerosol particles over Pakistan and the impact of these variations on various optical properties of clouds, using Moderate Resolution Imaging Spectroradiometer (MODIS) data from the Terra satellite.

91 citations


Journal ArticleDOI
TL;DR: In this paper, the impacts of integer ambiguity resolution and station environment-dependent effects are investigated in order to yield more accurate results for station displacements during the 12 May 2008 M w 8.0 Wenchuan earthquake.

Journal ArticleDOI
TL;DR: In this paper, the authors focus on strong coronal wave events that do show chromospheric Moreton wave signatures, and they find strong evidence for the wave/shock scenario, which might explain some of the issues which have made the interpretation of these phenomena so controversial.

Journal ArticleDOI
TL;DR: In this paper, the authors review the methods based on: (1) thermonuclear X-ray bursts, (2) accretion-powered millisecond-period pulsations, (3) kilohertz quasi-periodic oscillations; (4) broad relativistic iron lines; (5) quiescent emissions; and (6) binary orbital motions.

Journal ArticleDOI
TL;DR: The MOPITT (Measurements of Pollution in the Troposphere) instrument has provided more than nine years of global carbon monoxide (CO) measurements on a continuous basis since its launch aboard the Terra Spacecraft on December 18th, 1999 as discussed by the authors.

Journal ArticleDOI
TL;DR: Improved features of the on-board software enhance the coastal and inland water altimetry and increase the robustness of the data and the improvements introduced concurrently on the ground segment have significantly enhanced capability.

Journal ArticleDOI
TL;DR: In this article, the authors compared the physical drag coefficient of a satellite with a drag coefficient fitted to its observed orbital decay, which was obtained by fitting, in a least squares sense, the semi-major axis decay inferred from the historical two-line elements acquired by the US Space Surveillance Network.

Journal ArticleDOI
TL;DR: This contribution presents a GNSS carrier phase-based attitude determination method that determines the integer ambiguities and attitude in an integral manner, thereby fully exploiting the known body geometry of the multi-antennae configuration.

Journal ArticleDOI
TL;DR: In this paper, a new remove/filter/restore technique was proposed to combine GPS and InSAR data to measure interseismic crustal deformation, considering the spacing of GPS stations in California and the characteristics of the signal and noise using InSARS.

Journal ArticleDOI
TL;DR: In this article, the temporal and seasonal variations of total electron content (TEC) were studied at Agra (Geographic Lat. 27.17°N, Long. 78.89°E, Dip: 41.4°), India, for a period of 12 months from 01 January to 31 December, 2007 using a Global Positioning System (GPS) receiver.

Journal ArticleDOI
TL;DR: In this article, a new method for the identification of tropopause heights from GPS radio occultation (RO) bending angles (α ) was proposed, which uses a covariance transform to identify transitions in a ln ( α ) profile.

Journal ArticleDOI
TL;DR: In this article, the effect of applying a posteriori loading corrections to time series of positions estimated from Satellite Laser Ranging (SLR), Very Long Baseline Interferometry (VLBI), and Global Positioning System (GPS) data is evaluated.

Journal ArticleDOI
TL;DR: In this article, the microstructure of rain has been studied with observations using a vertical looking Micro Rain Radar (MRR) at Ahmedabad (23.06°N, 72.62°E), a tropical location in the Indian region.

Journal ArticleDOI
TL;DR: In this article, the photospheric magnetic complexity is used to predict solar flares and understand the physics of the magnetic field in the corona, and the magnetic energy spectrum and multifractal spectrum are highlighted as two possible approaches to this.

Journal ArticleDOI
TL;DR: Using the residual-based stochastic model, not only the precision of GPS baseline and ZTD estimation is obviously improved, but also the baseline and zenith tropospheric delay estimations are closer to the reference value.

Journal ArticleDOI
TL;DR: In this paper, an effort to model real solar energetic particle (SEP) events using a Center for Integrated Space weather Modeling (CISM) MHD solar wind simulation including a cone model of CMEs to initiate the related shocks is described.

Journal ArticleDOI
TL;DR: In this article, the authors studied the Forbush decrease of the galactic cosmic ray intensity observed in 9 − 25 September 2005 using the experimental data and a newly developed time-dependent three dimensional modeling.

Journal ArticleDOI
TL;DR: The cycle slip and gross error of GPS carrierphase data are detected and repaired by using a new combination of the simulated multi-frequency GPS carrier phase data in different conditions and results show that various real-time cycle slips are completely repaired.

Journal ArticleDOI
TL;DR: In a recent workshop in South Africa, UK and South African scientists and engineers discussed the current understanding of this hazard, as it affects major power systems in Europe and Africa as mentioned in this paper.

Journal ArticleDOI
TL;DR: In this paper, the authors report successful levitation of large water droplets and mice using a newly built variable gravity simulator, which consists mainly of a superconducting magnet with a room temperature accessible experimental levitating space.

Journal ArticleDOI
TL;DR: In this paper, time-series MODIS data were used in order to acquire the crop-related information in Chao Phraya Basin, and a general crop related LULC (land use and land cover) map, cropping intensity map and cropping patterns map were produced.