15 Hits in 9.2 sec

Application of remote sensing technique for drought assessment based on normalized difference drought index, a case study of Bac Binh district, Binh Thuan province (Vietnam)

Le Hung Trinh, Danh Tuyen Vu
2019 Russian Journal of Earth Science  
This paper presents the results of the study on drought assessment in Bac Binh district, Binh Thuan province using LANDSAT multispectral imagery based on normalized difference drought index (NDDI).  ...  Citation: Trinh, Le Hung and Danh Tuyen Vu (2019), Application of remote sensing technique for drought assessment based on normalized difference drought index, a case study of Bac Binh district, Binh Thuan  ...  -VTCI [Wang et al., 2001] , temperature vegetation dryness index -TVDI [Lambin and Ehrlich, 1996; Sandholt et al., 2002] .  ... 
doi:10.2205/2018es000647 fatcat:lwoprpau6fhlvdh3tn2nv3z7dm

Modeling the contributing factors of desertification and evaluating their relationships to the soil degradation process through geomatic techniques

P. Shoba, S. S. Ramakrishnan
2016 Solid Earth  
as meteorological data and Landsat ETM+ (Enhanced Thematic Mapper) and OLI (Operational Land Imager) satellite images of the crop-growing period (June–October) in geostatistical methods and newly proposed  ...  A longer term exacerbation of soil moisture stress (19 to 90<span class="thinspace"></span>%) has been noted in the areas that were susceptible to wind-induced desertification, due to a high evaporation  ...  Landsat images through the online data portal.  ... 
doi:10.5194/se-7-341-2016 fatcat:7lrsrzywrzanpprpnlei7rwyoq

A New Evapotranspiration Model Accounting for Advection and Its Validation during SMEX02

Yongmin Yang, Hongbo Su, Renhua Zhang, Jianjun Wu, Jianwei Qi
2013 Advances in Meteorology  
Both local scale evaluation with sites observations and regional scale evaluation with a remote dataset from Landsat 7 ETM+ were carried out to assess the performance of this model.  ...  Overall, results indicate that this newly developed model is capable of estimating reliable surface heat fluxes using remotely sensed data.  ...  Thanks is given to the organizers and participants in SMEX02 and the National Snow and Ice Data Center ( for providing the datasets used in this study.  ... 
doi:10.1155/2013/389568 fatcat:zinkdubgqzeolf6s62hj6gkx24

Mapping Latent Heat Flux in the Western Forest Covered Regions of Algeria Using Remote Sensing Data and a Spatialized Model

Souidi Zahira, Hamimed Abderrahmane, Khalladi Mederbal, Donze Frederic
2009 Remote Sensing  
The method is applicable under the assumptions of constant atmospheric conditions and sufficient wet and dry pixels over a Landsat 7 image.  ...  (Λ) according to the S-SEBI (Simplified Surface Energy Balance Index) concept.  ...  temperature/vegetation index) scatterplot domain derived from remote sensing observations [20] .  ... 
doi:10.3390/rs1040795 fatcat:pjthcqk5vvgcndbii7mcahy6ny

Review of the use of remote sensing for monitoring wildfire risk conditions to support fire risk assessment in protected areas

Olga Dipuo Molaudzi, Samuel Adewale Adelabu
2019 South African Journal of Geomatics  
or variables of very high heterogeneous and "multi-sensoral or multivariate fire risk index approach for fire risk assessment in PA.  ...  Fire risk assessment is one of the most important components in the management of fire that offers the framework for monitoring fire risk conditions.  ...  This resulted to the derivation of more indices such as Stress Index (SI) , Water Deficient Index (WDI) (Moran et al., 1994, Vidal and Devaux-Ros, 1995) ; Temperature -Vegetation Wetness Index (TVWI)  ... 
doi:10.4314/sajg.v7i3.2 fatcat:7dn2vi627fcilfdrk5p3s6cauu

Remote sensing monitoring the spatio-temporal changes of aridification in the Mongolian Plateau based on the general Ts-NDVI space, 1981–2012

Xiaoming Cao, Yiming Feng, Juanle Wang
2017 Proceedings of the Indian Academy of Sciences, Earth and Planetary Sciences  
spatio-temporal variations of drought based on the temperature vegetation dryness index (TVDI).  ...  It was found to be in close negative agreement with precipitation and 10 cm soil moisture; (3) in the Mongolian Plateau, TVDI presented a zonal distribution with changes in land use/land cover types, vegetation  ...  Gao Z, Gao W and Chang N B 2011 Integrating temperature vegetation dryness index (TVDI) and regional water stress index (RWSI) for drought assessment with the aid of LANDSAT TM/ETM+ images; J. Appl.  ... 
doi:10.1007/s12040-017-0835-x fatcat:lqud7gri7jcpjj2xaofnaugpam

A vegetation index based technique for spatial sharpening of thermal imagery

Nurit Agam, William P. Kustas, Martha C. Anderson, Fuqin Li, Christopher M.U. Neale
2007 Remote Sensing of Environment  
High spatial resolution (∼ 100 m) thermal infrared band imagery has utility in a variety of applications in environmental monitoring.  ...  The accuracy of the high-resolution temperature retrieval was evaluated using aircraft and Landsat thermal imagery, aggregated to simulate native and target resolutions associated with Landsat, MODIS,  ...  temperature variations due to unresolved soil-moisture anomalies.  ... 
doi:10.1016/j.rse.2006.10.006 fatcat:kg5cwyomlncojhrrs5yc6csk6u

An intercomparison of three remote sensing-based surface energy balance algorithms over a corn and soybean production region (Iowa, U.S.) during SMACEX

Minha Choi, William P. Kustas, Martha C. Anderson, Richard G. Allen, Fuqin Li, Jeppe H. Kjaersgaard
2009 Agricultural and Forest Meteorology  
The models were run using Landsat imagery collected during the Soil Moisture Atmosphere Coupling Experiment (SMACEX) in 2002 and model results were compared with observations from a network of flux towers  ...  METRIC and TIM make use of the remotely sensed surface temperature-vegetation cover relation to define key model variables linked to wet and dry hydrologic extremes, while TSEB uses these remotely sensed  ...  Rick Allen and Jeppe Kjaersgaard, which has been critical in guiding our development and implementation of METRIC to the satellite imagery used in the current study.  ... 
doi:10.1016/j.agrformet.2009.07.002 fatcat:ztygwt7dpjctxldk4o4w7sz72a

Spatial–temporal dynamics of land surface temperature in relation to fractional vegetation cover and land use/cover in the Tabriz urban area, Iran

Reza Amiri, Qihao Weng, Abbas Alimohammadi, Seyed Kazem Alavipanah
2009 Remote Sensing of Environment  
land surface temperature in relation to fractional vegetation cover and land use/cover in the Tabriz urban area, Iran  ...  In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository.  ...  The "Triangle Method" is used by Carlson et al. (1994) to extract soil moisture content and fractional vegetation cover (Fr), by Goward et al. (2002) to assess soil moisture condition and by Owen  ... 
doi:10.1016/j.rse.2009.07.021 fatcat:hyzgrbmsubbptdd476gdye4pfm

Archiving and Distributing Three Long-Term Interconnected Geospatial Data Sets

M.S. Moran, B.S. Hutchinson, S.E. Marsh, M.P. McClaran, A.D. Olsson
2009 IEEE Transactions on Geoscience and Remote Sensing  
The developments in archiving and distributing geospatial data are presented through the description and discussion of three interconnected case studies of data preservation at government and academic  ...  units in southeastern Arizona.  ...  The DAP project currently supports access to long-term measurements of precipitation, runoff, sediment, meteorological conditions, soil moisture and temperature, vegetation, CO 2 flux, and evapotranspiration  ... 
doi:10.1109/tgrs.2008.2002815 fatcat:kyux2k2w6ba3xhmlb265qmk3ka

Understanding the Links between LULC Changes and SUHI in Cities: Insights from Two-Decadal Studies (2001–2020)

Ahmed Derdouri, Ruci Wang, Yuji Murayama, Toshihiro Osaragi
2021 Remote Sensing  
This surge has been facilitated by the availability of freely accessible five-decade archived remotely sensed data, the use of state-of-art analysis methods, and advancements in computing capabilities.  ...  An urban heat island (UHI) is a serious phenomenon associated with built environments and presents threats to human health.  ...  Moisture Index Used in [85,154] 1.2% Bare Land NDBaI Normalized Difference Bareness Index [188] 7.3% DBSI Dry Bare-Soil Index [183] 2.4% Landscape Composition PLAND Percentage of Landscape  ... 
doi:10.3390/rs13183654 fatcat:tt3ax4ghubbileclkfwvbvcrdq

Climate-Triggered Insect Defoliators and Forest Fires Using Multitemporal Landsat and TerraClimate Data in NE Iran: An Application of GEOBIA TreeNet and Panel Data Analysis

Omid Abdi
2019 Sensors  
The panel data models using random effects indicated that the intensity of maximum temperatures of the current and previous years, the drought and soil-moisture deficiency of the current year, and the  ...  the normalized difference water index (NDWI) and the global environment monitoring index (GEMI).  ...  Acknowledgements Acknowledgements The authors would like to thank the reviewers for helpful suggestions that allowed us to improve this paper.  ... 
doi:10.3390/s19183965 pmid:31540009 pmcid:PMC6767512 fatcat:dgztlphbcjhf7biak22kewi3eu

Estimating minimum and maximum air temperature using MODIS data over Indo-Gangetic Plain

D B Shah, M R Pandya, H J Trivedi, A R Jani
2013 Proceedings of the Indian Academy of Sciences, Earth and Planetary Sciences  
While, T max was estimated using the Temperature-Vegetation Index (TVX) approach.  ...  Analysis in the study for T max estimation showed that calibrated NDVI max performed well, with the MAE of 1.79 • C and RMSE of 2.16 • C. 1) Statistical approaches (Davis and Tarpley 1983; Vancutsem et  ...  They also acknowledge the MODIS mission scientist and NASA personal for the production of the data used in this study and IMD measured data provider team.  ... 
doi:10.1007/s12040-013-0369-9 fatcat:ynwqvthfbzab5ai7f5qtft2neq


MacTar Mohamed
this dissertation casts light on an important issue in understanding the effect of built environment, biophysical and demographical factors on the local LST.  ...  The outcomes and methods used in this dissertation will be a beneficial reference for close investigation of local climate in the El Paso urban area in future work.  ...  using the following formula.Where B is TIR band.Five Landsat images from Landsat 5 TM and Landsat 7 ETM+ were acquired to get LST data.  ... 
doi:10.6084/m9.figshare.13077857.v1 fatcat:w6g4ly2ud5aivakw5quncgtad4

Knowledge Extracted from Copernicus Satellite Data

Dumitru Octavian, Schwarz Gottfried, Eltoft Torbjørn, Kræmer Thomas, Wagner Penelope, Hughes Nick, Arthus David, Fleming Andrew, Koubarakis Manolis, Datcu Mihai
2019 Zenodo  
In this publication, we focus on the Polar case which requires the selection of validation areas, the generation of a training dataset, the development and testing of deep learning algorithms, and the  ...  demonstration of regional results.  ...  The use of multi-or hyperspectral remote sensing data into soil monitoring and digital mapping can provide a large-scale survey, comprehensive and effective sites' monitoring and assess topsoil variables  ... 
doi:10.5281/zenodo.3941573 fatcat:zzifwgljifck5bpjnboetsftfu