Results 71 to 80 of about 694,763 (254)

A Database of High-Resolution Meteorological Drought Comprehensive Index Across China for the 1951–2022 Period

Data
Drought events exacerbated by global climate change occur frequently in China. Currently, high-spatiotemporal-resolution gridded meteorological drought index datasets are generally available for single time scales (e.g., 30, 60, 90, and 150 days) and do ...
Xijia Zhou, Mingwei Zhang, Guicai Li, Yuanyuan Wang, Zhaodi Guo   +4 more
doaj   +1 more source

High-Resolution Fengyun-4 Satellite Measurements of Dynamical Tropopause Structure and Variability

Remote Sensing, 2020
The dynamical tropopause is the interface between the stratosphere and the troposphere, whose variation gives indication of weather and climate changes.
Yi-Xuan Shou, Feng Lu, Shaowen Shou
doaj   +1 more source

Representativeness of Two Global Gridded Precipitation Data Sets in the Intensity of Surface Short-Term Precipitation over China

Remote Sensing, 2023
This study evaluates the representativeness of two widely used next-generation global satellite precipitation estimates data for short-term precipitation over China, namely the satellite data from the Climate Prediction Center morphing (CMORPH) and the ...
Xiaocheng Wei, Yu Yu, Bo Li, Zijing Liu
doaj   +1 more source

Radiometric calibration of a Helmholtz stereo rig [PDF]

Proceedings of the 2004 IEEE Computer Society Conference on Computer Vision and Pattern Recognition, 2004. CVPR 2004., 2004
Helmholtz stereopsis guarantees unbiasedness by BRDF of the search for inter-image correspondences. In a practical setup, calibrated pixel sensitivity and corrected light anisotropy are required for the method to work well. In this paper a simple method for joint light-camera radiometric calibration is proposed.
Zsolt Jankó, Ondrej Drbohlav, Radim Sára   +2 more
openaire   +2 more sources

The Moon as a Climate-Quality Radiometric Calibration Reference

Remote Sensing, 2020
On-orbit calibration requirements for a space-based climate observing system include long-term sensor response stability and reliable inter-calibration of multiple sensors, both contemporaneous and in succession. The difficulties with achieving these for
T. Stone, H. Kieffer, C. Lukashin, K. Turpie   +3 more
semanticscholar   +1 more source

Increase in plant productivity in the tundra in Sweden is not related to increasing presence of warm‐adapted vascular plant species

Ecography, EarlyView.
Over the past decades, Arctic and alpine biomes have warmed faster than the global average. Substantial vegetation changes have been reported as a response to this warming, including increased productivity and the spread of warm‐adapted (thermophilic) species that are less resistant to grazing pressure into higher latitudes and altitudes.
Tim Horstkotte, Jakob Assmann, Henrik Hedenås, Signe Normand, Johan Olofsson   +4 more
wiley   +1 more source

Land Use and Land Cover Analysis for Solid Waste Management in NCT Delhi Using Fusion Aware Segformer

Land Degradation &Development, EarlyView.
ABSTRACT The use of Land Use Land Cover (LULC) analysis is a fundamental requirement for urban solid waste management (SWM); however, conventional LULC analysis methods are not well suited to the spatio‐temporal variability, multi‐sensor heterogeneity, and seasonal variations of highly dynamic urban environments.
Rubeena Vohra, Ashish Kumar
wiley   +1 more source

Estimation of All-Sky Gridded Diurnal Near-Surface Air Temperatures at Regional Scale From FY-4B Measurements

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The near-surface air temperature (${{T}_{air}}$) is a principal variable describing energy exchange and water circulation between the land surface and the atmospheric environment. The estimation of ${{T}_{air}}$ by satellite land surface temperature (LST)
Ronghan Xu, Xin Wang, Yonghong Hu, Lin Chen, Suling Ren, Guangzhen Cao, Di Xian, Eston Ranson Mogha   +7 more
doaj   +1 more source

Change assessment of the Tonga island surface temperature before and after volcanic eruption based on FY-3D time series dataset

Egyptian Journal of Remote Sensing and Space Sciences, 2023
Taking advantage of the 250 m resolution and daily observation of dual thermal infrared channels data of the Medium Resolution Spectral Imager (MERSI) onboard the Fengyun 3D (FY-3D) satellite, a refined thermal infrared island surface temperature (ILST ...
Lixin Dong
doaj   +1 more source

Development of a Simplified Radiometric Calibration Framework for Water-Based and Rapid Deployment Unmanned Aerial System (UAS) Operations

Drones, 2020
The current study sets out to develop an empirical line method (ELM) radiometric calibration framework for the reduction of atmospheric contributions in unmanned aerial systems (UAS) imagery and for the production of scaled remote sensing reflectance ...
Christopher M. Zarzar, P. Dash, J. Dyer, R. Moorhead, L. Hathcock   +4 more
semanticscholar   +1 more source