Results 21 to 30 of about 5,998,597 (245)

Monitoring rangeland vegetation in the Sahel by Landsat MSS and NOAA AVHRR

, 1991
Quantities of herbaceous vegetation of Sahelian rangelands in Niger and Mali were compared to vegetation indices (VI) derived from Landsat MSS and NOAA AVHRR LAC images.
Hiederer, Roland
core   +7 more sources

Greenness and allergic rhinitis in children: the moderating and mediating effects of meteorological factors and air pollution

Frontiers in Climate
BackgroundEmerging evidence suggests that greenness may be beneficial to human health; however, the relationship between greenness exposure and childhood allergic rhinitis (AR) is inconsistent, and whether and how the link is moderated or mediated by ...
Yabin Hu, Yabin Hu, Guiyan Yang, Dan Wang, Wangyang Gu, Qingpeng Li, Linling Xu, Jingyi Tang, Jingyi Tang, Hui Wei, Shilu Tong, Shilu Tong, Zonghua Li, Shijian Liu   +13 more
doaj   +1 more source

Phenological response of vegetation to upstream river flow in the Heihe Rive basin by time series analysis of MODIS data [PDF]

, 2011
Liquid and solid precipitation is abundant in the high elevation, upper reach of the Heihe River basin in northwestern China. The development of modern irrigation schemes in the middle reach of the basin is taking up an increasing share of fresh water ...
Menenti, M., Shang, H.L., M. Menenti, Hu, G., H. Shang, G. Hu, L. Jia, Jia, L.   +7 more
core   +2 more sources

Carbon and Energy Balance in a Primary Amazonian Forest and Its Relationship with Remote Sensing Estimates

Remote Sensing
With few measurement sites and a great need to validate satellite data to characterize the exchange of energy and carbon fluxes in tropical forest areas, quantified by the Net Ecosystem Exchange (NEE) and associated with phenological measurements, there ...
Mailson P. Alves, Rommel B. C. da Silva, Cláudio M. Santos e Silva, Bergson G. Bezerra, Keila Rêgo Mendes, Larice A. Marinho, Melahel L. Barbosa, Hildo Giuseppe Garcia Caldas Nunes, José Guilherme Martins Dos Santos, Theomar Trindade de Araújo Tiburtino Neves, Raoni A. Santana, Lucas Vaz Peres, Alex Santos da Silva, Petia Oliveira, Victor Hugo Pereira Moutinho, Wilderclay B. Machado, Iolanda M. S. Reis, Marcos Cesar da Rocha Seruffo, Avner Brasileiro dos Santos Gaspar, Waldeir Pereira, Gabriel Brito-Costa   +20 more
doaj   +1 more source

Application of a novel vegetation condition index using MODIS EVI for structuring crop index insurance under a smallholder system

Environmental and Sustainability Indicators
Because of the ongoing pressure from climate change, there is a greater need for improved crop index insurance systems, and earth observation technology has made this possible.
Andualem Aklilu Tesfaye, Daniel Edward Osgood, Berhane Gessesse Aweke   +2 more
doaj   +1 more source

A Phenology-Based Evaluation of the Optimal Proxy for Cropland Suitability Based on Crop Yield Correlations from Sentinel-2 Image Time-Series

Agriculture
Cropland suitability calculations quantify natural suitability according to abiotic conditions, thus making them crucial for sustainable land management. However, since ground-truth yield data are extremely scarce, there is a need to improve knowledge on
Dorijan Radočaj, Mladen Jurišić
doaj   +1 more source

Comparison of the Continuity of Vegetation Indices Derived from Landsat 8 OLI and Landsat 7 ETM+ Data among Different Vegetation Types

Remote Sensing, 2015
Landsat 8, the most recently launched satellite of the series, promises to maintain the continuity of Landsat 7. However, in addition to subtle differences in sensor characteristics and vegetation index (VI) generation algorithms, VIs respond differently
Xiaojun She, Lifu Zhang, Yi Cen, Taixia Wu, Changping Huang, Muhammad Hasan Ali Baig   +5 more
doaj   +1 more source

Vegetation NDVI Linked to Temperature and Precipitation in the Upper Catchments of Yellow River [PDF]

, 2012
Vegetation in the upper catchment of Yellow River is critical for the ecological stability of the whole watershed. The dominant vegetation cover types in this region are grassland and forest, which can strongly influence the eco-environmental status of ...
Ouyang, W., Hao, F., Zhang, X., Skidmore, A.K., Zhang, X, Quyang, Y., Toxopeus, A.G.   +6 more
core   +1 more source

Ozone mitigates extended growing season and enhanced vegetation greenness driven by environmental change

Nature Communications
Rising temperature and elevated CO2 concentrations lead to extended growing seasons and enhanced vegetation greenness in terrestrial ecosystems, especially across the Northern Hemisphere.
Hao Yin, Lin Meng, Andrew D. Richardson, Maria Val Martin, Jiafu Mao, Huidong Li, Jonathan M. Gilligan, Hemraj Bhattarai, Amos P. K. Tai   +8 more
doaj   +1 more source

Land-Cover Phenologies and Their Relation to Climatic Variables in an Anthropogenically Impacted Mediterranean Coastal Area

Remote Sensing, 2010
Mediterranean coastal areas are experiencing rapid land cover change caused by human-induced land degradation and extreme climatic events. Vegetation index time series provide a useful way to monitor vegetation phenological variations.
Encarni I. Hernández, Magaly Koch, Ignacio Gómez, Jose Navarro-Pedreño, Ignacio Melendez-Pastor   +4 more
doaj   +1 more source