Results 21 to 30 of about 165,617 (285)

The Application of Modified Normalized Difference Water Index (MNDWI) by Leaf Area Index in the Retrieval of Regional Drought Monitoring [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
Abstract. The vegetation coverage is one of the important factors that restrict the accuracy of remote sensing retrieval of soil moisture. In order to effectively improve the accuracy of the remote sensing retrieval of soil moisture and to reduce the impact of vegetation coverage variation on the retrieval accuracy, the Leaf Area Index (LAI) is ...
H.-w. Zhang, H.-l. Chen
openaire   +6 more sources

Estimation of Year of Construction of Bridges in Cambodia by Analyzing the Landsat Normalized Difference Water Index

open access: yesInfrastructures, 2023
Inspection data can be used to comprehend and plan effective maintenance of bridges. In particular, the year of initial construction is one of the most important criteria for formulating maintenance plans, making budget allocations, and estimating soundness.
Vikas Singh Kuntal   +2 more
exaly   +3 more sources

Drought monitoring of forest vegetation using MODIS-based normalized difference drought index in Hungary [PDF]

open access: yesHungarian Geographical Bulletin, 2018
In this paper, several spectral indices based on spectral reflectance data from the Terra satellite’s Moderate Resolution Imaging Spectro-radiometer (MODIS) sensor were evaluated in terms of their practical applicability for quantifying drought intensity
András Gulácsi, Ferenc Kovács
doaj   +2 more sources

A REMOTE SENSING (RS) APPROACH USING NORMALIZED DIFFERENCE VEGETATION INDEX AND NORMALIZED DIFFERENCE WATER INDEX (NDVI & NDWI) FOR MAPPING THE ARCHAEOLOGICAL LANDSCAPE OF LORALAI DISTRICT, BALOCHISTAN.

open access: yes
The remote sensing imagery of Normalized Difference Vegetation Index and Normalized Difference Water Index (NDVI & NDWI), and field explorations has given a richer understanding of the archaeological landscape of the Loralai district in Balochistan, Pakistan. A systematic survey was conducted by the first author in 2020, 2021, and 2022, examining a
Khan, Zakir   +5 more
openaire   +4 more sources

Identification of Surface Water Storing Sites Using Topographic Wetness Index (TWI) and Normalized Difference Vegetation Index (NDVI)

open access: yesJournal of Natural Resources and Development, 2018
Ethiopia is endowed with water and has a high runoff generation area compared to many countries, but the total stored water only goes up to approximately 36BCM.
Ethiopia Bisrat, Belete Berhanu
doaj   +3 more sources

Correlation of normalized difference water index and baseflow index in small island watershed landscapes [PDF]

open access: yesIOP Conference Series: Earth and Environmental Science, 2021
Abstract The utilization of remote sensing data in the field of environmental hydrology is experiencing rapid progress. The Normalized Difference Water Index (NDWI) approach to transforming the water content of various land cover types and its implications for small island watersheds' hydrological characteristics is essential. NDWI is an
B Latuamury   +3 more
openaire   +1 more source

Detection of Ground Materials Using Normalized Difference Indices with a Threshold: Risk and Ways to Improve

open access: yesRemote Sensing, 2021
In this short communication, we describe the shortcomings and pitfalls of a commonly used method to detect ground materials that relies on setting thresholds for normalized difference indices.
Fen Chen   +4 more
doaj   +1 more source

Lake Water Quality and Dynamics Assessment during 1990–2020 (A Case Study: Chao Lake, China)

open access: yesAtmosphere, 2023
Settlements along the coastlines of oceans and lakes, which are among the world’s most densely populated areas, are in immediate danger due to stressors brought on by climate change and dangers posed by human activities. This study investigates the water
Chuan Li   +3 more
doaj   +1 more source

Identifying Urban Heat Effect through Satellite Image Analysis: Focusing on Narayanganj Upazila, Bangladesh

open access: yesJournal of Applied Science & Process Engineering, 2022
The rapid growth of population and land use cover change are closely connected. Narayanganj Sadar Upazila is the first Growing City in Bangladesh. Land use and land cover change are very first.
Md. Razzakul Islam, Md. Nazmul Haque
doaj   +1 more source

Detection of water deficit conditions in different soils by comparative analysis of standard precipitation index and normalized difference vegetation index

open access: yesHeliyon, 2023
The detection of water deficit conditions in different soils of Prakasam district, Andhra Pradesh, India was assessed in consecutive two seasons of 2017-18 to 2019-20 cropping seasons using combined indicators developed from Standard Precipitation Index (SPI) and Normalized Difference Vegetation Index (NDVI).
Sunil Kumar Medida   +11 more
openaire   +3 more sources

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