Results 21 to 30 of about 16,826 (306)

Three‐Dimensional Radiative Effects By Shallow Cumulus Clouds on Dynamic Heterogeneities Over a Vegetated Surface

open access: yesJournal of Advances in Modeling Earth Systems, 2020
One‐dimensional radiative transfer solvers are computationally much more efficient than full three‐dimensional radiative transfer solvers but do not account for the horizontal propagation of radiation and thus produce unrealistic surface irradiance ...
M. A. Veerman   +4 more
doaj   +1 more source

Impact of Horizontal Resolution on the Robustness of Radiation Emulators in a Numerical Weather Prediction Model

open access: yesRemote Sensing, 2023
Developing a machine-learning-based radiative transfer emulator in a weather forecasting model is valuable because it can significantly improve the computational speed of forecasting severe weather events.
Hwan-Jin Song, Soonyoung Roh
doaj   +1 more source

Radiative heat transfer during turbulent combustion [PDF]

open access: yes, 2009
We investigate the radiative heat transfer in a co-flowing turbulent nonpremixed propane-air flame inside a three-dimensional cylindrical combustion chamber.
S. C. Paul   +3 more
core   +1 more source

The impact of coupled 3D shortwave radiative transfer on surface radiation and cumulus clouds over land [PDF]

open access: yesAtmospheric Chemistry and Physics
Radiative transfer is a 3D process, but most atmospheric models consider radiation only in the vertical direction for computational efficiency. This results in inaccurate surface radiation fields, as the horizontal transport of radiation is neglected ...
M. Tijhuis   +2 more
doaj   +1 more source

A Refined Four-Stream Radiative Transfer Model for Row-Planted Crops

open access: yesRemote Sensing, 2020
In modeling the canopy reflectance of row-planted crops, neglecting horizontal radiative transfer may lead to an inaccurate representation of vegetation energy balance and further cause uncertainty in the simulation of canopy reflectance at larger ...
Xu Ma, Tiejun Wang, Lei Lu
doaj   +1 more source

Radiative Transfer in Lyα Nebulae. I. Modeling a Continuous or Clumpy Spherical Halo with a Central Source

open access: yesThe Astrophysical Journal, 2023
To understand the mechanism behind high- z Ly α nebulae, we simulate the scattering of Ly α in a H i halo about a central Ly α source. For the first time, we consider both smooth and clumpy distributions of halo gas, as well as a range of outflow speeds,
Seok-Jun Chang   +4 more
doaj   +1 more source

Retrieval of sea surface temperature from space based on modeling of infrared radiative transfer: capabilities and limitations [PDF]

open access: yes, 2004
The retrieval (estimation) of sea surface temperatures (SSTs) from space-based infrared observations is increasingly performed using retrieval coefficients derived from radiative transfer simulations of top-of-atmosphere brightness temperatures (BTs ...
Merchant, Christopher J.   +3 more
core   +1 more source

An implementation of radiative transfer in the cosmological simulation code gadget [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2009
We present a novel numerical implementation of radiative transfer in the cosmological smoothed particle hydrodynamics (SPH) simulation code {\small GADGET}. It is based on a fast, robust and photon-conserving integration scheme where the radiation transport problem is approximated in terms of moments of the transfer equation and by using a variable ...
Petkova, M., Springel, V.
openaire   +3 more sources

CO Mapping of Cygnus-X—Volume Density Distribution

open access: yesThe Astrophysical Journal, 2023
We present CO(2-1) and ^13 CO(2-1) maps of the Cygnus-X molecular cloud complex using the 10 m Heinrich Hertz Submillimeter Telescope. The maps cover the southern portion of the complex, which is strongly impacted by the feedback from the Cygnus OB2 ...
Jonah C. Baade   +3 more
doaj   +1 more source

COMPARING THE EFFECT OF RADIATIVE TRANSFER SCHEMES ON CONVECTION SIMULATIONS [PDF]

open access: yesThe Astrophysical Journal, 2012
We examine the effect of different radiative transfer schemes on the properties of 3D simulations of near-surface stellar convection in the superadiabatic layer, where energy transport transitions from fully convective to fully radiative. We employ two radiative transfer schemes that fundamentally differ in the way they cover the 3D domain.
Tanner, Joel D.   +2 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy