The in-scene atmospheric compensation (ISAC) algorithm of Young et al. (2002) [14] (and as implemented in the ENVI software system [16] as ‘Thermal Atm Correction’) is commonly applied to thermal infrared multiand hyperspectral imagery (MSI and HSI, respectively). ISAC estimates atmospheric transmissivity and upwelling radiance using only the scene data. The ISAC-derived transmissivity and upwe...

background: the phenomenon of dust is a serious environmental problem in dry and semi dry regions. it has a destructive effect for the residents of such regions. over two-thirds of iran is in areas of dry and semi-dry climate conditions. methods: in this research, dust fall measurements were taken in 41 stations across yazd city using a marble dust collector (mdco) located in different parts of...

The article presents the principles of joint work subcontracting design organizations on information model capital construction object. organization general data environment developed by contractor is described. tasks BIM manager, optimal folder structure, and levels access to participants in process are

We present a novel GIS, Real Space GIS, which is a 2D & 3D integration GIS. Real Space GIS is based on Real Space which is 3D geographical space and 2D map space which is based on geographical sphere or ellipsoid comparing to Paper Space GIS which is based on traditional Paper Space based on paper map coordinates. Real Space GIS mainly integrates data structure, data model, data storage, data v...

The Tarim River is the longest inland river in China and considered as an important to protect oasis economy environment of Basin. However, excessive exploitation over-utilization natural resources, particularly water have triggered a series ecological environmental problems, such reduction volume main river, deterioration quality, drying up downstream rivers, degradation vegetation, land deser...