Results 41 to 50 of about 5,369,509 (275)

Radiometric Cross Calibration of HY-1C/COCTS Based on Sentinel-3/OLCI

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The on-orbit radiometric calibration of spaceborne sensors is the foundation of quantitative remote sensing, and the calibration accuracy directly affects the quality of quantitative remote sensing products.
Yong Xie, Duo Feng, Wen Shao, Jie Han, Yidan Chen   +4 more
semanticscholar   +1 more source

Polarimetric SAR cross-calibration method based on stable distributed targets

Geo-spatial Information Science
Polarimetric calibration is essential for the pre-processing of Polarimetric Synthetic Aperture Radar (PolSAR) data because it effectively mitigates polarimetric distortions in the measured PolSAR data.
Yongsheng Zhou, Peiyun Chen, Qiang Yin, Erxue Chen, Laurent Ferro-Famil, Fan Zhang   +5 more
doaj   +1 more source

Extending the Global Space-Based Inter-Calibration System (GSICS) to Tie Satellite Radiances to an Absolute Scale

Remote Sensing, 2020
The Global Space-based Inter-Calibration System (GSICS) routinely monitors the calibration of various channels of Earth-observing satellite instruments and generates GSICS Corrections, which are functions that can be applied to tie them to reference ...
Tim J. Hewison, David R. Doelling, Constantine Lukashin, David Tobin, Viju O. John, Sauli Joro, Bojan Bojkov   +6 more
doaj   +1 more source

Comparability of Red/Near-Infrared Reflectance and NDVI Based on the Spectral Response Function between MODIS and 30 Other Satellite Sensors Using Rice Canopy Spectra

Sensors, 2013
Long-term monitoring of regional and global environment changes often depends on the combined use of multi-source sensor data. The most widely used vegetation index is the normalized difference vegetation index (NDVI), which is a function of the red and ...
Weijiao Huang, Jingfeng Huang, Xiuzhen Wang, Fumin Wang, Jingjing Shi   +4 more
doaj   +1 more source

Radiometric Cross-Calibration of the Chilean Satellite FASat-C Using RapidEye and EO-1 Hyperion Data and a Simultaneous Nadir Overpass Approach

Remote Sensing, 2016
The absolute radiometric calibration of a satellite sensor is the critical factor that ensures the usefulness of the acquired data for quantitative applications on remote sensing.
Carolina Barrientos, Cristian Mattar, Theodoros Nakos, Waldo Perez   +3 more
doaj   +1 more source

Technical Note: CT Calibration For Proton Treatment Planning By Cross-Calibration With Proton CT Data.

Medical Physics (Lancaster), 2020
PURPOSE This study explores the possibility of a new method for x-ray computed tomography (CT) calibration by means of cross-calibration with proton CT (pCT) data.
P. Farace, F. Tommasino, R. Righetto, F. Fracchiolla, M. Scaringella, M. Bruzzi, C. Civinini   +6 more
semanticscholar   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Radiometric Cross-Calibration of GF6-PMS and WFV Sensors with Sentinel 2-MSI and Landsat 9-OLI2

Remote Sensing
A panchromatic and multispectral sensor (PMS) and a wide-field-of-view (WFV) sensor were fitted aboard the Gaofen6 (GF6) satellite, which was launched on 2 June 2018.
Hengyang Wang, Zhaoning He, Shuang Wang, Yachao Zhang, Hongzhao Tang   +4 more
doaj   +1 more source

ATF4‐mediated stress response as a therapeutic vulnerability in chordoma

Molecular Oncology, EarlyView.
We screened 5 chordoma cell lines against 100+ inhibitors of epigenetic and metabolic pathways and kinases and identified halofuginone, a tRNA synthetase inhibitor. Mechanistically halofuginone induces an integrated stress response, with eIF2alpha phosphorylation, activation of ATF4 and its target genes CHOP, ASNS, INHBE leading to cell death ...
Lucia Cottone, James Dunford, Eleanor Calcutt, Vicki Gamble, Filiz Senbabaoglu Aksu, Lorena Ligammari, Georgina Wherry, Giorgia Gaeta, John C. Christianson, Adrienne M. Flanagan, Udo Oppermann, Adam P. Cribbs   +11 more
wiley   +1 more source

A Dynamic Gaussian Modified Spectral Band Adjustment Factors Method for Radiometric Cross-Calibration of HJ-2A/HSI with ZY1-02D/AHSI

Remote Sensing
The Huanjing Jianzai-2A (HJ-2A), launched in 2020 as China’s civilian operational environmental satellite, exhibits intrinsic non-uniformity from spectral channel distribution and inconsistency from the spectral resolution in its hyperspectral imager ...
Can Yu, Xiangyu Gao, Hang Zhao, Xiangpeng Feng, Juan Cheng, Bingliang Hu, Shuang Wang   +6 more
doaj   +1 more source