نتایج جستجو برای: remotely sensed data

تعداد نتایج: 2420844  

Journal: :Remote Sensing 2014
Jasper Van doninck Bernard De Baets Jan Peters Guy Hendrickx Els I. Ducheyne Niko E. C. Verhoest

Culicoides imicola is the main vector of the bluetongue virus in theMediterranean Basin. Spatial distribution models for this species traditionally employ either climatic data or remotely sensed data, or a combination of both. Until now, however, no studies compared the accuracies of C. imicola distribution models based on climatic versus remote sensing data, even though remotely sensed dataset...

2014
M. Verma M. A. Friedl A. D. Richardson G. Kiely A. Cescatti B. E. Law G. Wohlfahrt B. Gielen O. Roupsard E. J. Moors P. Toscano F. P. Vaccari D. Gianelle G. Bohrer A. Varlagin N. Buchmann E. van Gorsel L. Montagnani

Gross primary productivity (GPP) is the largest and most variable component of the global terrestrial carbon cycle. Repeatable and accurate monitoring of terrestrial GPP is therefore critical for quantifying dynamics in regional-to-global carbon budgets. Remote sensing provides high frequency observations of terrestrial ecosystems and is widely used to monitor and model spatiotemporal variabili...

2003
Qiu-Xiao Chen Jian-Cheng Luo Cheng-hu Zhou Tao Pei

The general image segmentation approach used in other domains may not be applicable to the remote sensing field, which is due to the following factors: remotely sensed data is multi-spectral, always very large in size, and in multi-scale as well. How to quickly and efficiently segment remotely sensed imagery is still a big issue to be solved. Based on human vision mechanism, a new hybrid multi-...

Journal: :Geospatial health 2015
Sabelo Nick Dlamini Jonas Franke Penelope Vounatsou

Many entomological studies have analyzed remotely sensed data to assess the relationship between malaria vector distribution and the associated environmental factors. However, the high cost of remotely sensed products with high spatial resolution has often resulted in analyses being conducted at coarse scales using open-source, archived remotely sensed data. In the present study, spatial predic...

Journal: :ISPRS Int. J. Geo-Information 2017
David M. Makori Ayuka T. Fombong Elfatih M. Abdel-Rahman Kiatoko Nkoba Juliette Ongus Janet Irungu Gladys Mosomtai Sospeter Makau Onisimo Mutanga John Odindi Suresh K. Raina Tobias Landmann

Bee keeping is indispensable to global food production. It is an alternate income source, especially in rural underdeveloped African settlements, and an important forest conservation incentive. However, dwindling honeybee colonies around the world are attributed to pests and diseases whose spatial distribution and influences are not well established. In this study, we used remotely sensed data ...

2013
Jonathan M. Nelson

The long-term goal of the work described here is to develop and test a general methodology for predicting unmeasured river characteristics using a variety of potentially incomplete remotely sensed data sets. Rather than addressing the problem using various geostatistical techniques to interpolate and extrapolate the remotely sensed data, we are developing two physically based techniques, each o...

Journal: :Remote Sensing 2013
Xiang Zhao Shunlin Liang Suhong Liu Wenping Yuan Zhiqiang Xiao Qiang Liu Jie Cheng Xiaotong Zhang Hairong Tang Xin Zhang Gongqi Zhou Shuai Xu Kai Yu

Using remotely sensed satellite products is the most efficient way to monitor global land, water, and forest resource changes, which are believed to be the main factors for understanding global climate change and its impacts. A reliable remotely sensed product should be retrieved quantitatively through models or statistical methods. However, producing global products requires a complex computin...

Journal: :Proceedings of the National Academy of Sciences 2018

Journal: :Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie 2011

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید