Results 101 to 110 of about 11,897 (218)

A Comparison of Land Surface Water Mapping Using the Normalized Difference Water Index from TM, ETM+ and ALI

open access: yesRemote Sensing, 2013
Remote sensing has more advantages than the traditional methods of land surface water (LSW) mapping because it is a low-cost, reliable information source that is capable of making high-frequency and repeatable observations.
Bingyu Sun   +7 more
doaj   +1 more source

Delineation of Water Bodies from Satellite Images Using MATLAB [PDF]

open access: yes, 2015
This project aims to extract Water Bodies from high resolution satellite images. The hyperspectral images contain data about all the features. The objective is to eliminate everything but the water body pixels present in the imagery.
Anand, Ankesh
core  

Inversion of surface soil moisture under vegetated areas based on optical and microwave remote sensing data

open access: yesGuan'gai paishui xuebao
【Objective】 The effects of Vertical-Vertical (VV) polarization, Vertical-Horizontal (VH) polarization, and dual polarization on microwave remote sensing retrieval of surface soil moisture (0-10 cm) were investigated.
ZHOU Meiling   +4 more
doaj   +1 more source

Water Feature Extraction and Change Detection Using Multitemporal Landsat Imagery

open access: yesRemote Sensing, 2014
Lake Urmia is the 20th largest lake and the second largest hyper saline lake (before September 2010) in the world. It is also the largest inland body of salt water in the Middle East.
Komeil Rokni   +3 more
doaj   +1 more source

Spectral analysis of suspended solids in inland waters with presence of mining activities: Sipí river case study, the colombian Pacific [PDF]

open access: yes, 2015
La minería es uno de las actividades que presenta gran afectación en el medio ambiente, en nuestro país es uno de los fenómenos que ha venido en aumento en zonas donde no hay una presencia integral del estado lo que ha llevado al crecimiento de esta ...
González Caro, Mauricio
core  

Studi Perbandingan Estimasi Tahun Konstruksi Jembatan di Indonesia Dengan Metode Remote Sensing

open access: yesTeras Jurnal: Jurnal Teknik Sipil
Abstrak   Jembatan adalah infrastruktur penghubung dua bagian daerah terputus karena adanya rintangan. Berdasarkan bentangnya, jembatan diklasifikasikan menjadi jembatan pendek dengan panjang L‰¤ 30 m, jembatan sedang dengan panjang 30 < L < 100 m, dan ...
Theresita Herni Setiawan   +6 more
doaj   +1 more source

New critical frontiers for the Potts and percolation models

open access: yes, 2006
We obtain the critical threshold for a host of Potts and percolation models on lattices having a structure which permits a duality consideration. The consideration generalizes the recently obtained thresholds of Scullard and Ziff for bond and site ...
F. Y. Wu   +3 more
core   +2 more sources

The PCA-NDWI Urban Water Extraction Model Based on Hyperspectral Remote Sensing

open access: yesWater
Accurate extraction of water bodies is the basis of remote sensing monitoring of water environments. Due to the complex types of ground objects around urban water bodies, high spectral and spatial resolution are needed to achieve accurate extraction of water bodies.
Zitong Zhao   +7 more
openaire   +1 more source

The dynamism of salt crust patterns on playas

open access: yes, 2015
Playas are common in arid environments and can be major sources of mineral dust that can influence global climate. These landforms typically form crusts that limit evaporation and dust emission, modify surface erosivity and erodibility, and can lead to ...
Bryant, Robert G.   +6 more
core   +1 more source

PRECISION AGRICULTURE BERBASIS CITRA REMOTE SENSING UNTUK MENENTUKAN KESESUAIAN VARIETAS TANAMAN PADI MENGGUNAKAN LEARNING VECTOR QUANTIZATION (LVQ) [PDF]

open access: yes, 2017
Padi (Oryza sativa L) merupakan bahan pangan utama bagi hampir seluruh rakyat Indonesia. Terdapat tiga varietas padi di Indonesia yakni hibrida, unggul dan lokal.
Apriliani, Annisa, KUSUMANINGRUM, RETNO
core  

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