搜索结果: 1-7 共查到“测绘科学技术 Cropland”相关记录7条 . 查询时间(0.056 秒)
ESTIMATING GROSS PRIMARY PRODUCTION IN CROPLAND WITH HIGH SPATIAL AND TEMPORAL SCALE REMOTE SENSING DATA
Cropland GOES-13 geostationary Gross Primary Production Landsat NDV MODIS NDVI/EVI product carbon cycle Photosynthesis active radiation (PAR)
2018/5/15
Satellite remote sensing data provide spatially continuous and temporally repetitive observations of land surfaces, and they have become increasingly important for monitoring large region of vegetatio...
VARIATIONS IN CROPLAND PHENOLOGY IN CHINA FROM 1983 TO 2002
Cropland phenology Starting date of growing season (SGS) NDVI Variation China
2016/1/3
In this study, we used the NDVI time-series datasets to investigate variations in the starting dates of growing season (SGS) in China's cropland from 1983 to 2002. To do so, a smoothing algorithm base...
Enhancing the Automatic Verification of Cropland in IKONOS Imagery
Segmentation Grouping Image Understanding Feature Extraction
2015/12/16
Segmentation is one of the first steps in the field of image analyzing and image understanding. It is the basis for the interpretation of images, or it supports other techniques which is the motivatio...
New methods and satellites: A program update on the NASS cropland data layer and acreage program
AWiFS Landsat See5
2015/9/6
The United States Department of Agriculture (USDA), National Agricultural Statistics Service (NASS) annually produces crop
specific classifications and acreage estimates over the major growing region...
COST AND BENEFIT ANALYSIS OF A CROPLAND DATA LAYER
Agricultural statistics service farmland data geographic information system the monitoring of the basin agricultural planning prairie pothole water monitoring crop and animal habitats
2015/5/13
In the last several years, the National Agricultural Statistics Service (NASS) has developed a Cropland Data
Layer (CDL) in geographic information system (GIS) format (See Figure 1) for public use. ...
MULTITEMPORAL QUALITY ASSESSMENT OF GRASSLAND AND CROPLAND OBJECTS OF A TOPOGRAPHIC DATASET
Automation Quality Inspection Updating GIS Crop Multitemporal Classification
2014/4/28
As a consequence of the wide-spread application of digital geo-data in geographic information systems (GIS), quality control has
become increasingly important to enhance the usefulness of the data. ...
POTENTIAL EVALUATION OF DIFFERENT TYPES OF IMAGES AND THEIR COMBINATION FOR THE CLASSIFICATION OF GIS OBJECTS CROPLAND AND GRASSLAND
Agriculture Classification Multitemporal Aeria Satellite
2014/6/5
In many publications the performance of different classification algorithms regarding to agricultural classes is evaluated.
In contrast, this paper focuses on the potential of different imagery for ...