搜索结果: 1-15 共查到“测绘科学技术 snow”相关记录31条 . 查询时间(0.113 秒)
STUDY ON THE RETRIEVAL OF SNOW DEPTH FROM FY3B/MWRI IN THE ATCTIC
FY3B MWRI Sea Ice Concentration Snow Depth Brightness Temperature Radiometer
2016/11/30
temperatures. Given the high albedo and low thermal conductivity, snow is regarded as one of the key reasons for the amplification of the warming in polar regions. The distributions of sea ice and sno...
NOVEL SNOW DEPTH RETRIEVAL METHOD USING TIME SERIES SSMI PASSIVE MICROWAVE IMAGERY
Snow Depth Support Vector Regression Nonlinear Modeling Genetic Algorithm band combination
2016/11/30
The Special Sensor Microwave Imager (SSM/I) and the Special Sensor Microwave Imager Sounder (SSM/IS) are satellites that work in passive microwave range. The SSM/I has capability to measure geophysica...
Hydrological Modelling and data assimilation of Satellite Snow Cover Area using a Land Surface Model,VIC
Snowmelt Runoff Beas VIC model MODIS SCA Data Assimilation Direct Insertion Ensemble kalman filter (EnKF)
2016/11/30
The snow cover plays an important role in Himalayan region as it contributes a useful amount to the river discharge. So, besides estimating rainfall runoff, proper assessment of snowmelt runoff for ef...
COMPARISON OF DIGITAL SURFACE MODELS FOR SNOW DEPTH MAPPING WITH UAV AND AERIAL CAMERAS
snow height dense point cloud digital surface model aerial camera
2016/11/30
Photogrammetric workflows for aerial images have improved over the last years in a typically black-box fashion. Most parameters for building dense point cloud are either excessive or not explained and...
TRACKING FOREST AND OPEN AREA EFFECTS ON SNOW ACCUMULATION BY UNMANNED AERIAL VEHICLE PHOTOGRAMMETRY
Unmanned Aerial Vehicle Digital Photogrammetry Structure from Motion Snow Depth Leaf Area Index Snowpack modelling
2016/7/5
Airborne digital photogrammetry is undergoing a renaissance. The availability of low-cost Unmanned Aerial Vehicle (UAV) platforms well adopted for digital photography and progress in software developm...
ASSESSMENT OF FOUR TYPICAL TOPOGRAPHIC CORRECTIONS IN LANDSAT TM DATA FOR SNOW COVER AREAS
Landsat TM topographic correction Cosine correction C correction SCS correction SCS+C correction snow cover NDSI
2016/7/4
The accuracy of snow cover information extraction in remote-sensing images dependent on a variety of factors, especially in mountain area with complex terrain. This paper aims at analyzing the accurac...
SNOW COVER AREA CHANGING ANALYSIS OVER TIBETAN PLATEAU WITH MODIS AND ASTER DATA
Changing analysis Snow cover Mapping Tibetan Plateau MODIS ASTER
2016/1/3
The Tibetan Plateau is called "the third pole" of the Earth by its highest altitude. So it is the most sensitive area in the world to hydrological cycle and climatic change. Estimating and mapping the...
ESTIMATION OF GLACIERS AND SNOW COVERAGE IN WESTERN PART OF MONGOLIA USING MODIS SNOW PRODUCTS
MODIS Glaciers Snow Coverage
2015/12/31
The purpose of the research study is to determine area Glaciers and Snow Coverage in Western part of Mongolia using by remote sensing methods. MODIS snow product by 8 day temporal resolution for June-...
DEM CREATION OF A SNOW COVERED SURFACE USING DIGITAL AERIAL PHOTOGRAPHY
Aerial Photogrammetry DSM Digital Photogrammetry Spatial Modeling Snow Image Matching High-resolution Image
2015/12/28
Seasonal snow plays a vital role in the world's water resources. In some areas, seasonal snow melt provides water for agriculture, industry, hydro-electricity generation and urban water supply. Accura...
SNOW MAPPING OF ALAMCHAL GLACIER USING REMOTE SENSING DATA
Hydrology Remote Sensing Snow Mapping Extraction Snow Cover Area (SCA) Alamchal
2015/12/28
Detection and determination of ice and snow characteristics using remote sensing data is a new method in obtaining hydrology parameters. In order to determine these characteristics the numbers of mete...
SNOW DEPTH ESTIMATION USING TIME SERIES PASSIVE MICROWAVE IMAGERY VIA GENETICALLY SUPPORT VECTOR REGRESSION (CASE STUDY URMIA LAKE BASIN)
Urmia Basin Snow Depth Support Vector Regression Wavelet Denoising Genetic Algorithm band reduction
2016/1/15
Lake Urmia is one of the most important ecosystems of the country which is on the verge of elimination. Many factors contribute to this crisis among them is the precipitation, paly important roll. Pre...
CONTACT SPECTROSCOPY FOR DETERMINATION OF STRATIGRAPHY OF SNOW OPTICAL GRAIN SIZE
snow clouds
2015/9/9
We present a technique for in situ measurement of the vertical and spatial stratigraphic distribution of snow
optical grain size with a coupled contact illumination probe and field spectroradiometer....
INTERCOMPARISON BETWEEN MODELLED AND SATELLITE-DERIVED SNOW COVER EXTENT WITHIN THE ALPINE AND SUBALPINE ZONE OF THE SWISS ALPS
subalpine zone Swiss Alps
2015/9/8
Snow cover represents an important variable with a wide impact on the environmental and socio-economic
system within alpine regions such as the Swiss Alps. Snow cover has a relevance within the alpin...
OPERATIONAL ASSIMILATION OF SNOW DEPTH MAPS FOR IMPROVED REAL TIME RUNOFF NOWCASTING WITH SPATIALLY DISTRIBUTED HYDROLOGICAL MODELS
Operational assimilation snow depth maps
2015/9/8
Representative real time information on snow depth and snow water equivalent is needed for several
practical purposes, above all avalanche warning and flood forecast and control in spring. This study...
SPACE-TIME SERIES OF MODIS SNOW COVER PRODUCTS FOR HYDROLOGIC SCIENCE
MODIS Snow Cover Products Hydrologic Scienc
2015/9/8
The Moderate-Resolution Imaging Spectroradiometer flies on two NASA/EOS satellites, , each imaging
most of the Earth every day, Terra in the morning, Aqua in the afternoon. MODIS has 36 spectral band...