Results 1 to 10 of about 4,649 (138)

Hybrid forward-selection method-based water-quality estimation via combining Landsat TM, ETM+, and OLI/TIRS images and ancillary environmental data. [PDF]

open access: yesPLoS ONE, 2018
A simple approach to enable water-management agencies employing free data to create a single set of water quality predictive equations with satisfactory accuracy is proposed. Multiple regression-derived equations based on surface reflectance, band ratios,
Min-Cheng Tu   +2 more
doaj   +2 more sources

Predictive Mapping of Topsoil Organic Carbon in an Alpine Environment Aided by Landsat TM. [PDF]

open access: yesPLoS ONE, 2015
The objective of this study was to examine the reflectance of Landsat TM imagery for mapping soil organic Carbon (SOC) content in an Alpine environment. The studied area (ca. 3*104 km2) is the upper reaches of the Heihe River at the northeast edge of the
Renmin Yang   +8 more
doaj   +2 more sources

The Methodology and Results from Ground Validation of Satellite Observations at Gas Flaring Sites in Nigeria

open access: yesInternational Journal of Environment and Geoinformatics, 2021
This study examines the need/importance for ground validation of Landsat 5 Thematic Mapper (TM) and Landsat 7 Enhanced Thematic Mapper Plus (ETM+) observation at 2 gas flaring sites in Rivers State of Niger Delta, Nigeria. 12 Landsat imageries (3 Landsat
Barnabas O. Morakinyo   +2 more
doaj   +1 more source

Empirical Estimation of Nutrient, Organic Matter and Algal Chlorophyll in a Drinking Water Reservoir Using Landsat 5 TM Data

open access: yesRemote Sensing, 2021
The main objective of this study was to develop empirical models from Landsat 5 TM data to monitor nutrient (total phosphorus: TP), organic matter (biological oxygen demand: BOD), and algal chlorophyll (chlorophyll-a: CHL-a).
Md Mamun, Jannatul Ferdous, Kwang-Guk An
doaj   +1 more source

A Framework of Generating Land Surface Reflectance of China Early Landsat MSS Images by Visibility Data and Its Evaluation

open access: yesRemote Sensing, 2022
The Landsat time-series dataset is one of the most widely used datasets for land surface research due to its long time-series and Land Surface Reflectance (LSR) product.
Cong Zhao, Zihua Wu, Qiming Qin, Xin Ye
doaj   +1 more source

Inconsistency among Landsat Sensors in Land Surface Mapping: A Comprehensive Investigation Based on Simulation

open access: yesRemote Sensing, 2021
Comprehensive investigations on the between-sensor comparability among Landsat sensors have been relatively limited compared with the increasing use of multi-temporal Landsat records in time series analyses.
Feng Chen   +6 more
doaj   +1 more source

Comparative analysis of Landsat TM, ETM+, OLI and EO-1 ALI satellite images at the Tisza-tó area, Hungary [PDF]

open access: yesActa Geographica Debrecina. Landscape & Environment Series, 2016
Satellite images are important information sources of land cover analysis or land cover change monitoring. We used the sensors of four different spacecraft: TM, ETM+, OLI and ALI.
Loránd Szabó   +2 more
doaj   +1 more source

ISO Cluster classifier by ArcGIS for unsupervised classification of the Landsat TM image of Reykjavík [PDF]

open access: yesBulletin of Natural Sciences Research, 2021
The paper presents the use of the Landsat TM image processed by the ArcGIS Spatial Analyst Tool for environmental mapping of southwestern Iceland, region of Reykjavik.
Lemenkova Polina
doaj   +1 more source

Enhanced Feature Pyramid Vision Transformer for Semantic Segmentation on Thailand Landsat-8 Corpus

open access: yesInformation, 2022
Semantic segmentation on Landsat-8 data is crucial in the integration of diverse data, allowing researchers to achieve more productivity and lower expenses.
Kritchayan Intarat   +2 more
doaj   +1 more source

REGIONAL GEOLGICAL MAPPING IN TROPICAL ENVIRONMENTS USING LANDSAT TM AND SRTM REMOTE SENSING DATA [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
Landsat Thematic Mapper (TM) and Shuttle Radar Topography Mission (SRTM) data were used to produce geological maps in tropical environments. Lineament, lithology and landform maps were produced for all states in peninsular Malaysia in this study.
A. Beiranvand Pour, M. Hashim
doaj   +1 more source

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