نتایج جستجو برای: old maps and satellite photos

تعداد نتایج: 16889408  

2005
Ramesh Sivanpillai Charles T. Smith R. Srinivasan Michael G. Messina X. Ben Wu

The USDA Forest Service, through its Forest Inventory and Analysis (FIA) program, periodically estimates forest/non-forest area at the county level using aerial photographs. Satellite-based remotely sensed data and digital image processing techniques could substantially reduce the time required to generate this information. Satellites collect data on a repeat basis and with higher frequency tha...

Journal: :تحقیقات جغرافیایی 0
داود مختاری مریم بیاتی خطیبی داود مختاری فریبا کرمی مریم بیاتی خطیبی

the proposal of geomorphologic matters in relation to tourism is one of interdisciplinary research approaches that has been considered in recent years. in this manner, geomorphological sites are defined as geomorphological landforms and processes that have acquired a scenic/aesthetic, scientific, cultural/historical and/or a social/economic value due to human perception of geological, geomorpho...

Journal: :تولید گیاهان زراعی 0
اسماعیل محمدی احمد محمودی دانشجو بهنام کامکار عضو هیئت علمی دانشگاه علوم کشاورزی و منابع طبیعی گرگان امید عبدی کارشناس ارشد اداره منابع طبیعی استان گلستان.

background and objectives: food security has been most important concern of the mankind on the earth. on the other hand, agricultural productions have always been face by risk probability in the case of weather and changes in international markets, however this risk probability never undeleted completely, but could be minimized that by pre-harvesting yield estimation. in this study, different m...

Journal: :تحقیقات جغرافیایی 0
مجتبی یمانی دانشکده جغرافیا دانشگاه تهران هیوا علمیزاده دانشگاه علوم و فنون دریایی خرمشهر

geomorphic indexes are useful tools in identification of evaluation in trace of tectonic activity (relatively rapid or even slow). since the drainage network morphology and behavior changes resulting from tectonic activity are very sensitive it seems to be evidence such as crossing the fault line and changes river bed affected by the neotectonic activities in basin. thus, for understanding and ...

Journal: :caspian journal of environmental sciences 2010
v. gholami m. mohseni saravi

urbanization is a pervasive global trend. the development of residential areas and road network in hajighoshan watershed (northern iran) has been observed in the recent several decades. the objective of this study is the quantitative investigation of the effects of impervious surfaces development and urban development on runoff generation and flood hazard. the study of urban area development wa...

2010
Zhiping Luo Haojie Li Jinhui Tang Richang Hong Tat-Seng Chua

Users can explore the world by viewing place related photos on Google Maps. One possible way is to take the nearby photos for viewing. However, for a given geo-location, many photos with view directions not pointing to the desired regions are returned by that world map. To address this problem, prior know the poses in terms of position and view direction of photos is a feasible solution. We can...

Journal: :international journal of advanced biological and biomedical research 2013
sahar delpasand maryam moradnezhadi zahra hossaini yousef askari

the preparation of vegetation cover maps by used the land inventory and a traditional method has a lot of cost and time. but today, remote sensing is one of the main sources of data collection and information production for study and monitoring land resources, and was efficient tools for providing quickly and timely data and information needs for program planning in the natural resource filed. ...

Urbanization is a pervasive global trend. The development of residential areas and road network in Hajighoshan watershed (northern Iran) has been observed in the recent several decades. The objective of this study is the quantitative investigation of the effects of impervious surfaces development and urban development on runoff generation and flood hazard. The study of urban area development wa...

Journal: Pollution 2018

As the largest service industry in the world, tourism plays a special role in sustainable development. Geomorphic tourism is known to be a segment of this industry with lower environmental impact and underlying causes that explain lower demand; therefore, it is essential to study, identify, assess, plan, and manage natural tourist attractions. As such, the present study assesses the ability of ...

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