搜索结果: 46-60 共查到“摄影测量与遥感技术 the soil”相关记录64条 . 查询时间(0.125 秒)
Radar backscattering measurement of bare soil and vegetation covered soil using X-band and full polarization
Land Cover Active Remote Sensing Microwave Remote Sensing Radar backscatter Scatterometer Look angle Polarization
2014/12/15
The objective of the study is to measure backscattered power of bare soil and vegetation covered soil using X-band scatterometer system with full polarization and various angles during monsoon season ...
Automated system for generation of soil moisture products for agricultural drought assessment
Automation Software Processing Agriculture Application Disaster Soil Hydrology
2014/12/15
Drought is a frequently occurring disaster affecting lives of millions of people across the world every year. Several parameters, indices and models are being used globally to forecast / early warning...
Validation of Satellite Soil Moisture Retrievals using Precipitation Records in India
Soil Moisture Validation Precipitation Remote Sensing
2014/12/15
Soil moisture plays crucial role in influencing the components of hydrologic cycle and thus used for large range of applications such as climate predictions, agriculture management and flood/drought m...
An exploratory spatial analysis of soil organic carbon distribution in Canadian eco-regions
Climate Land Cover Precipitation Satellite Soil Spatial Temperature Vegetation
2014/11/28
As the largest carbon reservoir in ecosystems, soil accounts for more than twice as much carbon storage as that of vegetation biomass or the atmosphere. This paper examines spatial patterns of soil or...
A new bare-soil index for rapid mapping developing areas using LANDSAT 8 data
Tasseled cap transformation Normalized difference bareness index Logical combination Landsat 8
2014/7/23
One of the most basic classification tasks is to distinguish bare-soil areas from urban region. Bare-soil plays an important role in the ecosystem. It could be the reason of dust storms and the indica...
DISCRIMINATION SOIL SALINIZATION DISTRIBUTION IN THE MIDDLE REGION OF HEIHE RIVER BASIN USING TM DATA
Stepwise Canonical discriminant approach Heihe River Landsat TM data Soil salinization
2013/9/2
A preliminary study has been conducted to test the effectiveness of the stepwise canonical discriminant approach to making spatial discrimination of salt-affected soil surfaces, using the Landsat TM ...
THE MULTI-LEVEL AND MULTI-SCALE FACTOR ANALYSIS FOR SOIL MOISTURE INFORMATION EXTRACTION BY MULTI-SOURCE REMOTE SENSING DATA
Maximum Likelihood data fusion classification soil moisture
2014/4/24
The research on coupling both data source is very important for improving the accuracy of Image information interpretation and
target recognition. In this paper a classifier is presented, which is b...
Monitoring and modeling the infl uence of snow pack and organic soil on a permafrost active layer, Qinghai – Tibetan Plateau of China
Qinghai–Tibetan Plateau Active layer Organic soil Snow pack CoupModel
2013/9/2
As a result of global warming, the depth of the permafrost active layer on the Qinghai–Tibet Plateau (QTP) hasbeen increasing progressively during thepast few decades. The Cold and Arid Regions Enviro...
GEOSTATISTICAL ANALYSIS OF SURFACE TEMPERATURE AND IN-SITU SOIL MOISTURE USING LST TIME-SERIES FROM MODIS
MODIS MODIS LST skin temperature near-surface soil moisture land cover geostatistics time-series
2014/4/29
The objective of this analysis is to provide a quantitative estimate of the fluctuations of land surface temperature (LST) with varying near surface soil moisture (SM) on different land-cover (LC) typ...
SENSOR WEB SERVICES FOR EARLY FLOOD WARNINGS BASED ON SOIL MOISTURE PROFILES
Sensor Monitoring Floods Environment Internet/Web
2014/4/28
As result of improved computing and communication capabilities, the use of sensors and sensor networks for environmental
monitoring has gained considerable importance in the recent years. For an int...
Seasonal variation of vegetation productivity over an alpine meadow in the Qinghai–Tibet Plateau in China: modeling the interactions of vegetation productivity, phenology, and the soil freeze–thaw process
Alpine meado Qinghai– Tibet Platea Unfro zen water Prima ry production
2013/9/2
Phenolog y cont rols the seaso nal activ ities ofvege tation on land surfaces and thu s plays a fun damenta lrole in regu lating pho tosynthesi s and othe r ecosyste mprocesses. There fore, accuratel ...
IMPACT OF EL NIÑO AND LA NIÑA ON SOIL MOISTURE- PRECIPITATION FEEDBACK OF INDIAN MONSOON OVER CENTRAL INDIA
El Nino La Niñ a Soil Moisture Evapotranspiration BATS CLM
2014/5/6
The processes across an interface between land surface and the atmosphere over central India have a strong impact on the Indian summer monsoon climate, particularly during extreme years. The soil mois...
Improvement of the AMSR-E Algorithm for Soil Moisture Estimation by Introducing a Fractional Vegetation Coverage Dataset Derived from MODIS Data
AMSR-E soil moisture fractional vegetation coverage MODIS
2010/11/24
Soil moisture is an important component of the hydrology of land surfaces. Accurate monitoring of soil moisture is essential in understanding energy and water cycles and ecological system processes. M...
Development of a Physically-based Soil Moisture Retrieval Algorithm for Spaceborne Passive Microwave Radiometers and its Application to AMSR-E
Passive Microwave Remote Sensin AMSR-E Soil Moisture Retrieval Radiative Transfer Model Lookup Table
2010/11/23
Many microwave radiometer algorithms for the retrieval of soil moisture tend to overestimate moisture in very dry cases, partly due to volume scattering effects. This study reports the development of ...
An Evaluation of Soil Moisture Retrievals Using Aircraft and Satellite Passive Microwave Observations During SMEX02
remote sensing soil moisture microwave field experiment passive
2010/11/24
The Soil Moisture Experiments conducted in Iowa in the summer of 2002 (SMEX02) had many remote sensing instruments that were used to study the spatial and temporal variability of soil moisture. The se...