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Updated: Jul 5, 2025

Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar
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使用基于GRACE的卫星估计的地下水干旱的时空空间分布:印度下游河流盆地的案例研究

Subimal Nandi1, Sujata Biswas2

  • 1Department of Civil Engineering, Indian Institute of Engineering Science and Technology, West Bengal-711103, Shibpur, Howrah, India.

Environmental monitoring and assessment
|January 15, 2024
PubMed
概括

印度地下水干旱 印度地下水干旱

关键词:
关于GGDI的研究格尔达斯·格尔达斯 (Gldas Gldas) 是一个MMK 的趋势分析.遥感是一种远程传感.这是一个SPI SPI.

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Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
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The Global Positioning System (GPS) has become an indispensable tool in fieldwork, offering unparalleled precision and efficiency for surveying, navigation, and infrastructure development. By harnessing signals from a constellation of satellites, GPS receivers determine the location of objects with remarkable speed and accuracy, often completing calculations within a second.Advantages of Modern GPS TechnologyContemporary GPS receivers are designed to meet the practical demands of field...
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GPS surveying methods vary in application, accuracy, and data collection techniques, catering to diverse surveying and mapping needs. Static GPS, kinematic GPS, and real-time kinematic (RTK) surveying are widely used. Each technique offers distinct advantages.Static GPS involves placing one receiver at a known reference point and another at the target point. It collects exact positional data by observing multiple satellite ranges over an extended period, achieving centimeter-level accuracy for...
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Surveyors use Global Positioning System (GPS) technology to measure the precise location and elevation of points on Earth. In a recent survey, GPS receivers were used to determine the coordinates and elevations of two park monuments. The process involved careful mission planning, data collection, and correction to ensure accuracy. The survey began with mission planning to identify optimal satellite visibility and minimize Position Dilution of Precision (PDOP). A geodetic control point...
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