نتایج جستجو برای: including satellite data
تعداد نتایج: 3149873 فیلتر نتایج به سال:
There is a wide variety of geo-spatial data available on the Internet, including a number of data sources that provide satellite imagery and maps of various regions. The National Map, MapQuest, and University of Texas Map Library are good examples of map or satellite imagery repositories. In addition, a wide variety of maps are available from various government agencies, such as property survey...
Tropical cyclones spend most of their life cycle over the tropical and subtropical oceans. Because of the lack of in situ data in these regions, satellite observations are fundamental for tracking and estimating the intensity of these storms for real-time forecasting and monitoring climate trends. This chapter reviews methods for estimating tropical cyclone intensity from satellites, including ...
Given the importance of snow, it seems necessary to predict its resultant runoff for optimized usage. In addition, due to snowbound regions cloudiness in winter season, the notice of snow cover area (SCA) using satellite images is difficult. Hence, to help better water resources managing in mountainous areas using supplementary methods for simulating the SCA is necessary. As a case study, Horo-...
The impact of including the diffraction loss in the interference modeling on the system throughput is assessed in the context of cognitive Ka-band satellite systems. In particular, we focus on the cognitive satellite downlink, where Geostationary (GEO) Fixed Satellite Service (FSS) terminals receive interference from the incumbent Fixed-Service (FS) microwave links. We present numerical results...
TO THE EDITOR: We thank Snijders et al. (5) for raising important questions worthy of further discussion. In our study, 14 days of bed rest induced robust myofiber atrophy and muscle weakness that was accompanied by a reduction in satellite cell content (1). Individual changes in satellite cell quantity were significantly correlated with the decline in myofiber cross-sectional area after bed re...
We construct a data-driven model for solar irradiation based on satellite observations. The model yields probabilistic estimates of the irradiation field every thirty minutes starting from two consecutive satellite measurements. The probabilistic nature of the model captures prediction uncertainties and can therefore be used by solar energy producers to quantify the operation risks. The model i...
gravity acceleration at the sea surface derived from satellite altimetry data using harmonic splines
gravity acceleration data have grand pursuit for marine applications. due to environmental effects, marine gravity observations always hold a high noise level. in this paper, we propose an approach to produce marine gravity data using satellite altimetry, high-resolution geopotential models and harmonic splines. on the one hand, harmonic spline functions have great capability for local gravity ...
Nowadays, for managing coastal zones and littoral lands, we need accurate and updated information on hydrography of coastal areas. These data can be obtained by local measurements, airborne imagery and satellite data. Using satellite data is not time-consuming and expensive like than other methods, thus it is most economical method in the world. Unfortunately, this method is not developed in Ir...
در این پایان نامه طراحی و تحلیل سیستم کنترل حرارت غیرفعال یک میکروماهواره به دو روش المان محدود و روش دترمینانها مورد بررسی قرار می گیرد. میکروماهواره مورد بررسی دارای هندسه 26وجهی می باشد که داخل آن ستونهایی برای استحکام سازه ای ماهواره و بلوکهایی جهت انجام وظایف ماهواره قرار گرفته اند. برای محاسبه پارامترهای مسیر و مدار ماهواره از نرم افزار satellite toolkit ((stkاستفاده می شود.
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