Results 31 to 40 of about 2,328,164 (222)

European Space Agency (ESA) Calibration/Validation Strategy for Optical Land-Imaging Satellites and Pathway towards Interoperability

open access: yesRemote Sensing, 2021
Land remote sensing capabilities in the optical domain have dramatically increased in the past decade, owing to the unprecedented growth of space-borne systems providing a wealth of measurements at enhanced spatial, temporal and spectral resolutions. Yet,
Fabrizio Niro   +8 more
doaj   +1 more source

Emerging STEM education researchers' positioning and perception of discipline-based education research [PDF]

open access: yesarXiv, 2023
Various motivations bring researchers to discipline-based education research (DBER), but there is little research on their conceptualization of and navigation into this new-to-them area of research. We use phenomenography to analyze interview data collected from twenty-eight emerging STEM education researchers to gain a better understanding of how they
arxiv  

Research topic trend prediction of scientific papers based on spatial enhancement and dynamic graph convolution network [PDF]

open access: yesarXiv, 2022
In recent years, with the increase of social investment in scientific research, the number of research results in various fields has increased significantly. Accurately and effectively predicting the trends of future research topics can help researchers discover future research hotspots.
arxiv  

Satellite-based assessment of the catastrophic Jhelum floods of September 2014, Jammu & Kashmir, India

open access: yesGeomatics, Natural Hazards & Risk, 2017
The state of Jammu and Kashmir in North India experienced one of the worst floods in the past 60 years, during the first week of September 2014. In the present study, multi-temporal synthetic aperture radar (SAR) satellite images acquired from Indian ...
C. M. Bhatt   +10 more
doaj   +1 more source

Stratospheric gravity wave potential energy and tropospheric parameters relationships over South America: a study using COSMIC-2 and METOP radio occultation measurements

open access: yesEarth, Planets and Space, 2023
Using COSMIC-2 and METOP radio occultation measurements during the years 2020 and 2021, the study presents the first direct and independent relationship between the potential energy (Ep) in the stratosphere, precipitable water vapour (PWV), tropopause ...
Toyese Tunde Ayorinde   +7 more
doaj   +1 more source

Evidence of stratosphere–troposphere exchange during severe cyclones: a case study over Bay of Bengal, India

open access: yesGeomatics, Natural Hazards & Risk, 2016
The role of cyclones in atmospheric mixing and troposphere–stratosphere exchange of ozone and relative humidity (RH) is investigated for two severe cyclones PHAILIN and HUDHUD over the Bay of Bengal.
Mahesh Pathakoti   +6 more
doaj   +1 more source

Atmospheric Correction of Multispectral VNIR Remote Sensing Data: Algorithm and Inter‐sensor Comparison of Aerosol and Surface Reflectance Products

open access: yesEarth and Space Science, 2020
Optical imaging satellites, such as SPOT and Cartosat‐2S, provide visible/near infrared (VNIR) multispectral data at very high spatial resolution. The applications of these data sets are associated with precise mapping, monitoring, and change detection ...
Manoj K. Mishra   +3 more
doaj   +1 more source

Aerosol transport over the Gangetic basin during ISRO-GBP land campaign-II [PDF]

open access: yesAnnales Geophysicae, 2008
MODIS (Moderate Resolution Imaging Spectroradiometer) Level-3 aerosol optical depth (AOD) data and NCEP (National Centre for Environmental Prediction) reanalysis winds were incorporated into an aerosol flux continuity equation, for a quantitative ...
M. Aloysius   +4 more
doaj   +1 more source

Two decades of fires in the Brazilian Amazon and the differences in patterns between open and forest vegetation [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
This study investigated the pattern distribution of fires in the Brazilian Amazon and their relationship with deforested areas from 2003 to 2022. The primary objective was to analyze fire spots’ spatial and temporal variation.
C. G. Messias   +18 more
doaj   +1 more source

Generation of Non-Linear Technique Based 6 Hourly Wind Reanalysis Products Using SCATSAT-1 and Numerical Weather Prediction Model Outputs

open access: yesRemote Sensing, 2023
We combined observations of ocean surface winds from Indian SCATterometer SATellite-1 (SCATSAT-1) with a background wind field from a numerical weather prediction (NWP) model available at National Centre for Medium-Range Weather Forecast (NCMRWF) to ...
Suchandra Aich Bhowmick   +5 more
doaj   +1 more source

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