نتایج جستجو برای: grace
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1 Electrode in a Rectangular Flow Channel 2 3 F.J. Recio 1 , P. Herrasti 1 , L. Vazquez 2 , C. Ponce de León* 3 , F.C. Walsh 3 4 5 1 Universidad Autónoma de Madrid. Facultad de Ciencias. Departamento de Química6 Física Aplicada. 28049, Spain. 7 2 Instituto de Ciencia de Materiales de Madrid (CSIC), 28049 Madrid, Spain 8 3 Electrochemical Engineering Laboratory, National Centre for Advanced Trib...
Zur Repräsentation grammatikalischen Wissens werden zur Zeit deklarative Formalismen favorisiert, die zugleich sehr stark kompetenzorientiert sind. Im Gegensatz dazu gibt es im Bereich der anwendungsorientierten Forschung Ansätze zur automatischen Verarbeitung natürlicher Sprache, die prozedurales Wissen in den Grammatikformalismus einbeziehen und die Repräsentation des grammatikalischen Wissen...
BACKGROUND Identifying which patients presenting with undifferentiated chest pain are at risk of major cardiac events is a major clinical challenge. Clinical evaluation may lack sufficient precision, leading to unnecessary admission or inappropriate discharge. It is uncertain whether risk scores derived from ACS populations apply to unselected patients with chest pain. AIM To determine the pr...
Introduction NASA’s Gravity Recovery and Climate Experiment (GRACE), which is a joint mission of the United States and Germany, uses a pair of coupled satellites to measure spatial and temporal changes in the Earth’s gravity field. From these data, estimates of changes (time-variable anomalies) in mass are derived. In turn, the mass changes are attributed primarily to changes in water content (...
[1] This study presents the first comparison of seasonal groundwater storage (GWS) variations derived fromGRACE satellite data with groundwater-level measurements in the High Plains Aquifer, USA (450,000 km). Correlation between seasonal GRACE terrestrial water storage (TWS) and the sum of GWS estimated from field measurements (2,700 wells) and soil moisture (SM) simulated by a land surface mod...
Mass redistribution of the Earth causes variable loading that deforms the solid Earth. While most recent studies using geodetic techniques focus on regions (such as the Amazon basin and the Nepal Himalayas) with large seasonal deformation amplitudes on the order of 1-4 cm due to hydrologic loading, few such studies have been conducted on the regions where the seasonal deformation amplitude is h...
By delivering monthly maps of the gravity field, the GRACE project allows the determination of tiny time-variations of the Earth gravity and particularly the effects of fluid mass redistributions at the surface of the Earth. However, GRACE data represent vertically integrated gravity measurements, thus are the sum of all mass redistributions inside the Earth system (atmosphere, oceans and conti...
Since the launch of the GRACE (Gravity Recovery And Climate Experiment) satellite mission in 2002, significant progress in the knowledge regarding the temporal variations of the Earth’s gravity field has been achieved. The main objectives of this contribution are to define a suitable filter to reduce the noise contained in the latest release, i.e. RL05, of GRACE-based GGMs as well as to select ...
• We propose a simple and robust method for reconstructing continuous GRACE-like TWSA. Reconstructed data using piecewise trends is better in capturing anomalous change. TWSA detects the Australian drought during gaps 2018. Since 2002, terrestrial water storage anomalies (TWSA) derived from Gravity Recovery Climate Experiment (GRACE) its successor, GRACE Follow-on (GRACE-FO), have been widely u...
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