Carving and adaptive drainage enforcement of grid digital elevation models
نویسندگان
چکیده
منابع مشابه
Carving and adaptive drainage enforcement of grid digital elevation models
[1] An effective and widely used method for removing spurious pits in digital elevation models consists of filling them until they overflow. However, this method sometimes creates large flat regions which in turn pose a problem for the determination of accurate flow directions. In this study, we propose to suppress each pit by creating a descending path from it to the nearest point having a low...
متن کاملA Computational-Grid Based System for Continental Drainage Network Extraction Using SRTM Digital Elevation Models
We describe a new effort for the computation of elevation derivatives using the Shuttle Radar Topography Mission (SRTM) results. Jet Propulsion Laboratory's (JPL) SRTM has produced a near global database of highly accurate elevation data. The scope of this database enables computing precise stream drainage maps and other derivatives on Continental scales. We describe a computing architecture fo...
متن کاملInteroperable processing of digital elevation models in grid infrastructures
Based on the service specifications of the Open Geospatial Consortium (OGC), Spatial Data Infrastructures (SDI) support the visualization, access to vector and raster data or managing and search for spatial data. A standard for distributed spatial data processing was missing for a long time. This issue was addressed by the development of the OpenGIS Web Processing Service (WPS) specification. H...
متن کاملUnsupervised Extraction of Drainage Network from Digital Elevation Data: A Self-Adaptive Approach
In this study, the problem of unsupervised extraction of drainage network from elevation data is addressed. A self-adaptive system and its application to the problem are described. The popularity of Geographic Information Systems and the availability of many high-resolution elevation data sets have increased many uses of elevation data. One of the more challenging and yet useful applications is...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Water Resources Research
سال: 2003
ISSN: 0043-1397
DOI: 10.1029/2002wr001879