Results 71 to 80 of about 15,180 (210)
Journal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.Abstract The Madden–Julian Oscillation (MJO), a recurring intraseasonal (30–96 days) disturbance in the troposphere, strongly influences the E‐region and F‐region ionosphere through its modulation of atmospheric tides. Among these, the diurnal eastward wave number 3 (DE3) tide, driven by MJO‐modulated latent heating, carries MJO signals upward into the
Deepali Aggarwal +4 more
wiley +1 more source
Journal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.Abstract We present the first comprehensive multi‐instrument climatological study of quiet‐time equatorial F‐region vertical plasma drifts across South America, a region where the magnetic declination angle varies significantly. Our analysis of well‐established long‐term ground‐based data sets from the Jicamarca incoherent scatter radar spanning 1968 ...
Sophia R. Laranja +6 more
wiley +1 more source
Theory of zone radiometry [PDF]
, 1973 A spectroscopic instrumentation system was developed which was used to measure temperature and concentration distributions in axisymmetric and two dimensional combusting flows.
Farmer, R. C., Audeh, B. J.
core
Variability and uncertainty in measuring sea surface temperature
, 2012 Sea Surface Temperature (SST) measurement is one of the most easily obtainable climate variables. However, it is challenging to meet the required absolute accuracy and long term stability whether the data are derived by in situ or satellite measurements.
Wimmer, Werenfrid
core +1 more source
, 2018 This paper presents the experimental characterization of predictable quantum efficient detectors, which have been designed for use at room temperature.
Smid, M. +5 more
core +1 more source
AIP AdvancesColloidal quantum dots have been widely applied in various optoelectronic devices such as solar cells, photodetectors, and light emitting diodes. The measurement of carrier dynamics not only allows the study of the passivation quality of quantum dot ...
Zitao Zhao +5 more
doaj +1 more source
Landsat-8 Operational Land Imager Radiometric Calibration and Stability
Remote Sensing, 2014 The Landsat-8 Operational Land Imager (OLI) was radiometrically calibrated prior to launch in terms of spectral radiance, using an integrating sphere source traceable to National Institute of Standards and Technology (NIST) standards of spectral ...
Brian Markham +8 more
doaj +1 more source
Wavelength modulation laser heterodyne radiometry [PDF]
, 2018 A novel method is proposed for improving the performance of traditional laser heterodyne radiometry. The technique, which is based on the use of a wavelength modulated local oscillator laser, provides baseline-free spectra, lower limits of detection, and
Martín Mateos, Pedro +2 more
core +1 more source
Anisotropic receiver of streams of thermal radiation on the basis of the cadmium antimonid [PDF]
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2009 The unselective anisotropic receiver of stream of thermal radiation is developed on the basis of cadmium antimonid with the measuring range of power luminosity from 10 to 20000 W/m2.
Dobrovolskiy Yu. G., Shabashkevich B. G.
doaj
Remote Sensing, 2019 A fully automated, National Institute of Standards and Technology (NIST)-traceable artificial light source called Terra Vega has been developed to radiometrically calibrate the Visible Infrared Imaging Radiometer (VIIRS) Day Night Band (DNB) working in ...
Robert E. Ryan +8 more
doaj +1 more source