Results 61 to 70 of about 11,897 (218)

AUTOMATED GIS-BASED TECHNIQUE FOR EVALUATION OF INDIRECT GROWING SEASON ESTIMATIONS [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
This article is based on NDWI (Normalized Difference Water Index) which is automatically computed from the daily MODIS data. The main purpose of the article is to tell how the evaluation of NDWI-based growing season estimations can be automated. The NDWI
I. Rykin, E. Panidi, V. Tsepelev
doaj   +1 more source

Specific features of NDVI, NDWI and MNDWI as reflected in land cover categories

Landscape & Environment, 2016
The remote sensing techniques provide a great possibility to analyze the environmental processes inlocal or global scale. Landsat images with their 30 m resolution are suitable among others for landcover mapping and change monitoring. In this study three spectral indices (NDVI, NDWI, MNDWI) wereinvestigated from the aspect of land cover types: water ...
SZILÁRD SZABÓ, ZOLTÁN GÁCSI, BOGLÁRKA BALÁZS   +2 more
openaire   +2 more sources

Spatial and temporal scales in plant phenotyping for crop water stress assessment: A review

The Plant Phenome Journal, Volume 9, Issue 1, December 2026.
Abstract Water stress is a major limiting factor for crop productivity worldwide, and its impacts are intensifying due to climate variability and increasing water scarcity. This review focuses on the spatial and temporal scales in plant phenotyping as a critical approach to improving crop water‐stress assessment and supporting precision water ...
Daniel Kingsley Cudjoe, Yazhou Sun, Sanai Li, Wenxuan Guo   +3 more
wiley   +1 more source

Modelling of growing season methane fluxes in a high-Arctic wet tundra ecosystem 1997–2010 using in situ and high-resolution satellite data [PDF]

Tellus: Series B, Chemical and Physical Meteorology, 2013
Methane (CH4) fluxes 1997–2010 were studied by combining remotely sensed normalised difference water index (NDWI) with in situ CH4 fluxes from Rylekærene, a high-Arctic wet tundra ecosystem in the Zackenberg valley, north-eastern Greenland.
Torbern Tagesson, Mikhail Mastepanov, Meelis Mölder, Mikkel P. Tamstorf, Lars Eklundh, Benjamin Smith, Charlotte Sigsgaard, Magnus Lund, Anna Ekberg, Julie M. Falk, Thomas Friborg, Torben R. Christensen, Lena Ström   +12 more
doaj   +1 more source

Seasonal differences in the dominant factors of surface urban heat islands along the urban-rural gradient

Frontiers in Environmental Science, 2022
Urbanization has been accelerating; hence the effect of urban heat island (UHI) has increased. There has been extensive research on spatiotemporal UHI changes and drivers, however, data on the dominant seasonal factors of UHIs and the differences along ...
Jiaxing Xin, Jun Yang, Jun Yang, Jun Yang, Ling-en Wang, Cui Jin, Xiangming Xiao, Jianhong (Cecilia) Xia   +7 more
doaj   +1 more source

Integração de parâmetros morfométricos e imagem Aster para a delimitação das fitofisionomias da Serra da Canastra, Parque Nacional da Serra da Canastra, MG [PDF]

, 2010
Este trabalho teve como objetivo delimitar as fitofisionomias utilizando parâmetros morfométricos e imagens do sensor ASTER na Serra da Canastra, Parque Nacional da Serra da Canastra, MG.
Carvalho Júnior, Osmar Abílio de, Couto Júnior, Antônio Felipe, Freitas, Leonardo Figueiredo, Gomes, Roberto Arnaldo Trancoso, Martins, Éder de Souza, Santana, Otacílio Antunes, Souza, Vinicius Vasconcelos de   +6 more
core   +3 more sources

Modelo área-volume para a Represa Guarapiranga empregando o índice NDWI

Holos Environment, 2020
As represas representam uma importante fonte de água para fins de abastecimento urbano. A variação do volume de água armazenada nesses reservatórios pode ser estimada a partir da relação empírica área-volume, na qual a área do reservatório ocupada por água pode ser calculada a partir de técnicas de sensoriamento remoto, destacando-se aquelas estimadas ...
Caroline Favoreto Da Cunha, Sabrina Brandão Cardoso, Elias Hideo Teramoto, Hung Kiang Chang   +3 more
openaire   +2 more sources

Impact of Urban Environmental Indices on Surface Temperature in Dhaka: A Policy‐Oriented Perspective

Climate Resilience and Sustainability, Volume 5, Issue 1, June 2026.
ABSTRACT Dhaka's rapid urban expansion has intensified surface heating and degraded environmental quality. This study analyzes environmental indices from 2015 to 2025, revealing a strong positive relationship between built‐up growth and land surface temperature, and negative associations with vegetation and water presence.
Milon Bokshi, Md. Jakir Hossain, Md. Munir Mahmud   +2 more
wiley   +1 more source

Using the right slope of the 970 nm absorption feature for estimating canopy water content [PDF]

, 2009
Canopy water content (CWC) is important for understanding the functioning of terrestrial ecosystems. Biogeochemical processes like photosynthesis, transpiration and net primary production are related to foliar water.
Clevers, J.G.P.W., Kooistra, L., Schaepman, M.E.   +2 more
core   +1 more source

Performance Evaluation of Automated Flood Inundation Mapping Techniques Using Multi‐Temporal Sentinel‐1 SAR Data

Journal of Flood Risk Management, Volume 19, Issue 2, June 2026.
ABSTRACT In recent times, the development of algorithms to delineate water surface maps has significantly boosted flood monitoring and mitigation efforts by utilizing dual polarization, multi‐temporal Sentinel‐1 synthetic aperture radar (SAR) data. The Sentinel‐1 mission, with its global land monitoring capability, has been widely employed for SAR ...
Gautam Dadhich, Mukand Babel, Hiroyuki Miyazaki, Indrajit Pal, Nitin Kumar Tripathi, Salvatore G. P. Virdis   +5 more
wiley   +1 more source