Results 31 to 40 of about 20,858 (241)

Origin of two-band chorus in the radiation belt of Earth

Nature Communications, 2019
Chorus waves are crucial on radiation belt dynamics in the space of magnetized planets. Here, the authors show that initially excited single-band chorus waves can quickly accelerate medium energy electrons, and divide the anisotropic electrons into low ...
Jinxing Li, Jacob Bortnik, Xin An, Wen Li, Vassilis Angelopoulos, Richard M. Thorne, Christopher T. Russell, Binbin Ni, Xiaochen Shen, William S. Kurth, George B. Hospodarsky, David P. Hartley, Herbert O. Funsten, Harlan E. Spence, Daniel N. Baker   +14 more
doaj   +1 more source

Empirically Estimated Electron Lifetimes in the Earth's Radiation Belts: Van Allen Probe Observations

Geophysical Research Letters, 2020
We use measurements from NASA's Van Allen Probes to calculate the decay time constants for electrons over a wide range of energies (30 keV to 4 MeV) and L values ( L = 1.3–6.0) in the Earth's radiation belts.
S. G. Claudepierre, Q. Ma, J. Bortnik, T. P. O'Brien, J. F. Fennell, J. B. Blake   +5 more
doaj   +1 more source

Possible climatic implications of high-altitude black carbon emissions [PDF]

Atmospheric Chemistry and Physics, 2017
On account of its strong absorption of solar and terrestrial radiation, black carbon (BC) aerosol is known to impact large-scale systems, such as the Asian monsoon and the Himalayan glaciers, in addition to affecting the thermal structure of the lower
G. Govardhan, S. K. Satheesh, S. K. Satheesh, R. Nanjundiah, R. Nanjundiah, K. K. Moorthy, S. S. Babu   +6 more
doaj   +1 more source

Angular sampling of a monochromatic, wide-field-of-view camera to augment next-generation Earth radiation budget satellite observations [PDF]

Atmospheric Measurement Techniques, 2023
Earth radiation budget (ERB) satellite observations require conversion of the measured radiance, which is a remotely sensed quantity, to a derived irradiance, which is the relevant energy balance quantity routinely used in modeling and analysis of the ...
J. J. Gristey, J. J. Gristey, J. J. Gristey, K. S. Schmidt, K. S. Schmidt, H. Chen, D. R. Feldman, B. C. Kindel, J. Mauss, J. Mauss, M. van den Heever, M. van den Heever, M. Z. Hakuba, P. Pilewskie, P. Pilewskie   +14 more
doaj   +1 more source

Intercomparing Solar Spectral Irradiance From SORCE SIM

Earth and Space Science, 2020
We compare solar spectral irradiance (SSI) measurements obtained from the Spectral Irradiance Monitor (SIM) on board the Solar Radiation and Climate Experiment (SORCE), corrected for instrument degradation using three different methods; SIM Version 25 ...
Steffen Mauceri, Peter Pilewskie, Tom Woods, Stéphane Béland, Erik Richard   +4 more
doaj   +1 more source

Reappraising elastic thickness variation at oceanic trenches [PDF]

We reassess the variation of elastic thickness as a function of lithospheric plate age using a global database of bathymetric and free-air gravity profiles which are perpendicular to oceanic trenches.
White, N. J., Bry, M.
core   +1 more source

Tropospheric carbon monoxide variability from AIRS under clear and cloudy conditions [PDF]

Atmospheric Chemistry and Physics, 2013
We study the carbon monoxide (CO) variability in the last decade measured by NASA's Atmospheric InfraRed Sounder (AIRS) on the Earth Observing System (EOS)/Aqua satellite.
J. Warner, F. Carminati, Z. Wei, W. Lahoz, J.-L. Attié   +4 more
doaj   +1 more source

Automatic Weather Station (AWS) Program operated by the University of Wisconsin-Madison during the 2011-2012 field season

Antarctic Record, 2013
During the 2011-2012 austral summer, the Antarctic Automatic Weather Station (AWS) program at the University of Wisconsin?Madison completed its 32nd year of observations.
Matthew A. Lazzara, Lee J. Welhouse, Jonathan E. Thom, John J. Cassano, Alice K. DuVivier, George A. Weidner, Linda M. Keller, Lars Kalnajs   +7 more
doaj   +1 more source

Evaluating the performance of empirical models of total electron density and whistler-mode wave amplitude in the Earth’s inner magnetosphere

Frontiers in Astronomy and Space Sciences, 2023
Empirical models have been previously developed using the large dataset of satellite observations to obtain the global distributions of total electron density and whistler-mode wave power, which are important in modeling radiation belt dynamics.
Qianli Ma, Qianli Ma, Xiangning Chu, Donglai Ma, Sheng Huang, Wen Li, Jacob Bortnik, Xiao-Chen Shen   +7 more
doaj   +1 more source

Satellite observations of snowfall regimes over the Greenland Ice Sheet [PDF]

The Cryosphere, 2020
The mass of the Greenland Ice Sheet (GrIS) is decreasing due to increasing surface melt and ice dynamics. Snowfall both adds mass to the GrIS and has the capacity to reduce surface melt by increasing surface brightness, reflecting additional solar ...
E. A. McIlhattan, C. Pettersen, N. B. Wood, T. S. L'Ecuyer   +3 more
doaj   +1 more source