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Issue Info: 
  • Year: 

    2001
  • Volume: 

    48
  • Issue: 

    160
  • Start Page: 

    403
  • End Page: 

    424
Measures: 
  • Citations: 

    1
  • Views: 

    337
  • Downloads: 

    509
Abstract: 

Planners and decision - makers involve with a variety of activities undertaken at different spatial scales by national, regional or local organizations. They have to be aware of new techniques surrounding them. Geography Information System (gis) is a set of computer sciences which can help planners in different areas such as housing, industry, environmental management, urban planning and so on. In this study the following titles, the object of gis, types of data storage, hardware and software in a gis environment, type of information systems, and application and user of gis will be discussed.

Yearly Impact:  

View 337

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Writer: 

KIET S.

Journal: 

RANGELAND

Issue Info: 
  • Year: 

    2000
  • Volume: 

    22
  • Issue: 

    2
  • Start Page: 

    18
  • End Page: 

    20
Measures: 
  • Citations: 

    211
  • Views: 

    7384
  • Downloads: 

    3936
Keywords: 
Abstract: 

Yearly Impact:  

View 7384

Download 3936 Citation 211 Refrence 0
Journal: 

RANGELANDS

Issue Info: 
  • Year: 

    2000
  • Volume: 

    22
  • Issue: 

    2
  • Start Page: 

    18
  • End Page: 

    20
Measures: 
  • Citations: 

    422
  • Views: 

    4509
  • Downloads: 

    3936
Keywords: 
Abstract: 

Yearly Impact:  

View 4509

Download 3936 Citation 422 Refrence 0
Journal: 

سپهر

Issue Info: 
  • Year: 

    1379
  • Volume: 

    9
  • Issue: 

    33
  • Start Page: 

    0
  • End Page: 

    0
Measures: 
  • Citations: 

    1
  • Views: 

    48
  • Downloads: 

    23
Keywords: 
Abstract: 

Yearly Impact:  

View 48

Download 23 Citation 1 Refrence 0
Issue Info: 
  • Year: 

    2005
  • Volume: 

    18
  • Issue: 

    2 (67 IN NATURAL RESOURCES)
  • Start Page: 

    65
  • End Page: 

    72
Measures: 
  • Citations: 

    2
  • Views: 

    692
  • Downloads: 

    338
Abstract: 

Proper stream network mapping is highly needed for any hydrological studies particularly for automatic flow routing in gis based raster models. Generally, one of the disadvantages of making use of digitized stream network, based on topographic maps is incompatibility of stream features with flow direction vectors. In an uncertainty condition, making use of this stream network will terminate routing program before normal ending. An algorithm was designed, making use of Avenue program in Arcview gis. Designing this algorithm was based on D8 method, which is one of the pixel to- pixel flow conduction methods. Points lying on digitized stream network can get elevation in a vector domain. Then, these points can be used in determining stream flows, which produces new stream network of catchments. The new generated stream network, in spite of having vector property, exactly coincides with flow direction patterns. One of the most important specifications of this algorithm is reallocation of stream network without generating extra features.

Yearly Impact:  

View 692

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Journal: 

بندر و دریا

Issue Info: 
  • Year: 

    1391
  • Volume: 

    27
  • Issue: 

    195
  • Start Page: 

    0
  • End Page: 

    0
Measures: 
  • Citations: 

    0
  • Views: 

    192
  • Downloads: 

    23
Keywords: 
Abstract: 

لطفا برای مشاهده متن کامل این مقاله اینجا را کلیک کنید.

Yearly Impact:  

View 192

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Issue Info: 
  • Year: 

    2006
  • Volume: 

    38
  • Issue: 

    57
  • Start Page: 

    127
  • End Page: 

    138
Measures: 
  • Citations: 

    1
  • Views: 

    853
  • Downloads: 

    432
Abstract: 

Distributing geographical information on the Internet is an enforcing factor for information providers. Internet allows all levels of society to access geographical information, and provides a media for processing geo-related information with no location restrictions. Web-based gis is evolved from different Web maps and client-server architecture to distributed ones. As such, Internet reshapes all functions of information systems including: gathering, storing, retrieving, analyzing, and visualizing data. The high cost of gis system, the release of system specific databases, and the enormous software developer efforts on upgrading the system are fading with the introduction of web-based gis Moreover, disseminating spatial information on the Internet improves the decision-making processes.This paper examines the current Web gis technologies with emphasis on architectures. Eight state-of–the-art Web gis products from leading gis companies have been scientifically assessed. This paper also proposes a web gis development strategies starting from requirement analysis, and ending in gis use and maintenance. Disseminating Iranian Road information on the Internet has been presented as a successful implementation of the strategy.It is concluded that the Internet based information delivery adds the margin of profitability of the Transportation and Terminal Organization. The proposed strategy has been tested successfully. Civilian can get to their destinations faster.

Yearly Impact:  

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Writer: 

RAMACHANDRA T.V.

Issue Info: 
  • Year: 

    2007
  • Volume: 

    18
  • Issue: 

    2
  • Start Page: 

    101
  • End Page: 

    114
Measures: 
  • Citations: 

    211
  • Views: 

    5767
  • Downloads: 

    3936
Keywords: 
Abstract: 

Yearly Impact:  

View 5767

Download 3936 Citation 211 Refrence 0
Writer: 

WONG D.W.S.

Issue Info: 
  • Year: 

    2003
  • Volume: 

    27
  • Issue: 

    1
  • Start Page: 

    53
  • End Page: 

    70
Measures: 
  • Citations: 

    211
  • Views: 

    2713
  • Downloads: 

    3936
Keywords: 
Abstract: 

Yearly Impact:  

View 2713

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Writer: 

BIAN L.

Issue Info: 
  • Year: 

    2004
  • Volume: 

    28
  • Issue: 

    -
  • Start Page: 

    171
  • End Page: 

    173
Measures: 
  • Citations: 

    212
  • Views: 

    3931
  • Downloads: 

    3992
Keywords: 
Abstract: 

Yearly Impact:  

View 3931

Download 3992 Citation 212 Refrence 0

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