نتایج جستجو برای: rapideye
تعداد نتایج: 257 فیلتر نتایج به سال:
Este trabalho propôs utilizar o processamento de imagens RapidEye conciliado com etapas checagem campo para gerar um mapa Índice Sensibilidade Fluvial ao derramamento óleo a orla do município Santarém – Pará. A classificação não-supervisionada resultou na geração classes identificadas, composto pelas água, área urbana, praia fluvial, várzea. O índice Kappa Geral foi ~0,86%, qual é considerado e...
The Permanent Protection Areas (PPA) are relevant to ensure vegetation around the drainage network. This paper presents an automated methodology for extraction of from river and generation PPA, analysis environmental adequacy. is based on geoprocessing remote sensing techniques applied RapidEye satellite images. analyzed area covers a portion Paraíba do Sul basin, located in city São José dos C...
Abstract. Water quality monitoring is compulsory to maintain and preserve aquatic ecosystem health, especially for the phytoplankton community. Phytoplankton abundance relies greatly on condition of water, it important assess water parameter (WQP) estimate PP. However, obtaining WQP using conventional methods (water sampling laboratory assessment) requires more time cost operation. Therefore, G...
Given the high precipitation verified in Azores, peatlands, as water retention structures, are promoters of landscape balance, reducing frequency major events such landslides. However, these ecosystems face increased land-use change disturbances that placing future security critical ecosystem services doubt. This study aims to estimate current and potential hydrologic services, particularly, st...
Abstract Information provided by satellite data is becoming increasingly important in the field of agriculture. Estimating biomass, nitrogen content or crop yield can improve farm management and optimize precision agriculture applications. A vast amount made available both as map material from space. However, it up to user select appropriate for a particular problem. Without knowledge, this may...
Tillage erosion causes substantial soil redistribution that can exceed water especially in hummocky landscapes under highly mechanized large field agriculture. Consequently, truncated profiles be found on hill shoulders and top slopes, whereas colluvial material is accumulated at footslopes, depressions, along downslope borders. We tested the hypothesis substantially affects in-field patterns o...
Forest aboveground biomass (AGB) is a prime forest parameter that requires global level estimates to study the carbon cycle. Light detection and ranging (LiDAR) state-of-the-art technology for AGB prediction but it expensive, its coverage restricted small areas. On contrary, spaceborne Earth observation data are effective economical information sources estimate monitor at large scale. In this p...
Tropical montane grasslands (TMG) support biodiverse and endemic taxa provide vital ecosystem services to downstream communities. Nevertheless, invasive alien tree species across the world have threatened tropical grassland species. In India, TMG in Shola Sky Islands of Western Ghats been reduced due exotic invasions (Acacias, Pines, Eucalyptus species). The loss habitat has, turn, range sizes ...
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