نتایج جستجو برای: cover change

تعداد نتایج: 689153  

2011
Meriam M. Makinano-Santillan Jojene R. Santillan Enrico C. Paringit

This paper describes a combined remote sensing-GIS-logistic regression approach of merging extracted information from Landsat images with georeferenced biophysical and socio-economic datasets in the detection and analysis of the driving forces of forest cover change in Agusan del Norte (ADN) in Mindanao Island, Philippines, a province where forest resource use have been historically extensive. ...

2014
Tristram O West Yannick Le Page Maoyi Huang Julie Wolf Allison M Thomson

Projections of land cover change generated from integrated assessment models (IAM) and other economic-based models can be applied for analyses of environmental impacts at sub-regional and landscape scales. For those IAM and economic models that project land cover change at the continental or regional scale, these projections must be downscaled and spatially distributed prior to use in climate o...

Journal: :IOP Conference Series: Earth and Environmental Science 2014

Gholamalifard, Mehdi, Parsamehr, Koosha, Kooch, Yahia,

  Reducing Emissions from Deforestation and Forest Degradation (REDD) is a climate change mitigation strategy employed to reduce the intensity of deforestation and GHGS emissions. In recent decades, drastic land use changes in Mazandaran province caused a substantial reduction in the amount of Hyrcanian forests. The present research based on objectives of REDD projects paid to identify of fore...

2004
Mark R. Drinkwater David G. Long

Satellite-borne wind scatterometers are effective tools for monitoing ice sheets and microwave imaging techniques enable comparison of historic and contemporary scatterometer data in climate change studies. We document scattering characteristics of the Greenland ice sheet using data from the NSCAT, ERS-112 and Seasat SASS instruments. Cand Ku-band data enable characterization of frequencydepend...

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2005
F Bektas C Goksel

In this study, remote sensing and geographic information system (GIS) techniques were used in order to accomplish land cover change of Bozcaada Island, Turkey, by using multitemporal Landsat Thematic Mapper data. Digital image processing techniques were conducted for the processes of image enhancement, manipulation, registration and classification for land cover change analysis. The land cover ...

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2012
Chadwick D Rittenhouse Anna M Pidgeon Thomas P Albright Patrick D Culbert Murray K Clayton Curtis H Flather Jeffrey G Masek Volker C Radeloff

Changes in land use and land cover have affected and will continue to affect biological diversity worldwide. Yet, understanding the spatially extensive effects of land-cover change has been challenging because data that are consistent over space and time are lacking. We used the U.S. National Land Cover Dataset Land Cover Change Retrofit Product and North American Breeding Bird Survey data to e...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2007
K M Brander

Current global fisheries production of approximately 160 million tons is rising as a result of increases in aquaculture production. A number of climate-related threats to both capture fisheries and aquaculture are identified, but we have low confidence in predictions of future fisheries production because of uncertainty over future global aquatic net primary production and the transfer of this ...

2016
eric Herman Jean-Daniel Champagnac

Here, we review an ensemble of observations that point towards a global increase of erosion rates in regions of elevated mountain belts, or otherwise high relief, since the onset of Northern Hemisphere Glaciation about 2–3 Ma. During that period of Earth’s history, atmospheric CO2 concentrations may have dropped, and global climate cooled and evolved towards high-amplitude oscillating condition...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2013
Richard E Zeebe

Climate sensitivity measures the response of Earth's surface temperature to changes in forcing. The response depends on various climate processes that feed back on the initial forcing on different timescales. Understanding climate sensitivity is fundamental to reconstructing Earth's climatic history as well as predicting future climate change. On timescales shorter than centuries, only fast cli...

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