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Journal articles on the topic 'Radiation Parameterization'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Baran, Anthony J., Peter Hill, David Walters, et al. "The Impact of Two Coupled Cirrus Microphysics–Radiation Parameterizations on the Temperature and Specific Humidity Biases in the Tropical Tropopause Layer in a Climate Model." Journal of Climate 29, no. 14 (2016): 5299–316. http://dx.doi.org/10.1175/jcli-d-15-0821.1.

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Abstract The impact of two different coupled cirrus microphysics–radiation parameterizations on the zonally averaged temperature and humidity biases in the tropical tropopause layer (TTL) of a Met Office climate model configuration is assessed. One parameterization is based on a linear coupling between a model prognostic variable, the ice mass mixing ratio qi, and the integral optical properties. The second is based on the integral optical properties being parameterized as functions of qi and temperature, Tc, where the mass coefficients (i.e., scattering and extinction) are parameterized as no

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da Silva, Nuno V., Andrew Ratcliffe, Vetle Vinje, and Graham Conroy. "A new parameter set for anisotropic multiparameter full-waveform inversion and application to a North Sea data set." GEOPHYSICS 81, no. 4 (2016): U25—U38. http://dx.doi.org/10.1190/geo2015-0349.1.

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Parameterization lies at the center of anisotropic full-waveform inversion (FWI) with multiparameter updates. This is because FWI aims to update the long and short wavelengths of the perturbations. Thus, it is important that the parameterization accommodates this. Recently, there has been an intensive effort to determine the optimal parameterization, centering the fundamental discussion mainly on the analysis of radiation patterns for each one of these parameterizations, and aiming to determine which is best suited for multiparameter inversion. We have developed a new parameterization in the s

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3

Sedlar, J., and R. Hock. "On the use of incoming longwave radiation parameterizations in a glacier environment." Cryosphere Discussions 2, no. 4 (2008): 487–511. http://dx.doi.org/10.5194/tcd-2-487-2008.

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Abstract. Energy balance based glacier melt models require accurate estimates of incoming longwave radiation since it is generally the largest source of energy input. Multi-year near-surface meteorological data from Storglaciären, northern Sweden, were used to evaluate commonly used longwave radiation parameterizations in a glacier environment under clear-sky, overcast-sky and all-sky conditions. The tested parameterization depending solely on air temperature performed worse than those including also air humidity. Adopting parameter values from the literature instead of fitting them to the dat

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Baran, Anthony J., Peter Hill, Kalli Furtado, Paul Field, and James Manners. "A Coupled Cloud Physics–Radiation Parameterization of the Bulk Optical Properties of Cirrus and Its Impact on the Met Office Unified Model Global Atmosphere 5.0 Configuration." Journal of Climate 27, no. 20 (2014): 7725–52. http://dx.doi.org/10.1175/jcli-d-13-00700.1.

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Abstract A new coupled cloud physics–radiation parameterization of the bulk optical properties of ice clouds is presented. The parameterization is consistent with assumptions in the cloud physics scheme regarding particle size distributions (PSDs) and mass–dimensional relationships. The parameterization is based on a weighted ice crystal habit mixture model, and its bulk optical properties are parameterized as simple functions of wavelength and ice water content (IWC). This approach directly couples IWC to the bulk optical properties, negating the need for diagnosed variables, such as the ice

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Lengfeld, Katharina, Andreas Macke, and Uwe Güldner Feister. "Parameterization of solar radiation from model and observations." Meteorologische Zeitschrift 19, no. 1 (2010): 25–33. http://dx.doi.org/10.1127/0941-2948/2010/0423.

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6

Oh, Ju-Won, and Tariq Alkhalifah. "Elastic orthorhombic anisotropic parameter inversion: An analysis of parameterization." GEOPHYSICS 81, no. 6 (2016): C279—C293. http://dx.doi.org/10.1190/geo2015-0656.1.

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The resolution of a multiparameter full-waveform inversion (FWI) is highly influenced by the parameterization used in the inversion algorithm, as well as the data quality and the sensitivity of the data to the elastic parameters because the scattering patterns of the partial derivative wavefields (PDWs) vary with parameterization. For this reason, it is important to identify an optimal parameterization for elastic orthorhombic FWI by analyzing the radiation patterns of the PDWs for many reasonable model parameterizations. We have promoted a parameterization that allows for the separation of th

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Van Weverberg, Kwinten, Cyril J. Morcrette, and Ian Boutle. "A Bimodal Diagnostic Cloud Fraction Parameterization. Part II: Evaluation and Resolution Sensitivity." Monthly Weather Review 149, no. 3 (2021): 859–78. http://dx.doi.org/10.1175/mwr-d-20-0230.1.

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AbstractA wide range of approaches exists to account for subgrid cloud variability in regional simulations of the atmosphere. This paper addresses the following questions: 1) Is there still benefit in representing subgrid variability of cloud in convection-permitting simulations? 2) What is the sensitivity to the cloud fraction parameterization complexity? 3) Are current cloud fraction parameterizations scale-aware across convection-permitting resolutions? These questions are addressed for regional simulations of a 6-week observation campaign in the U.S. southern Great Plains. Particular atten

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8

Masmoudi, Nabil, and Tariq Alkhalifah. "A new parameterization for waveform inversion in acoustic orthorhombic media." GEOPHYSICS 81, no. 4 (2016): R157—R171. http://dx.doi.org/10.1190/geo2015-0635.1.

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Orthorhombic anisotropic model inversion is extra challenging because of the multiple parameter nature of the inversion problem. The high number of parameters required to describe the medium exerts considerable trade-off and additional nonlinearity to a full-waveform inversion (FWI) application. Choosing a suitable set of parameters to describe the model and designing an effective inversion strategy can help in mitigating this problem. Using the Born approximation, which is the central ingredient of the FWI update process, we have derived radiation patterns for the different acoustic orthorhom

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9

Cagnazzo, C., E. Manzini, M. A. Giorgetta, and P. M. De F. Forster. "Impact of an improved radiation scheme in the MAECHAM5 General Circulation Model." Atmospheric Chemistry and Physics Discussions 6, no. 6 (2006): 11067–92. http://dx.doi.org/10.5194/acpd-6-11067-2006.

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Abstract. In order to improve the representation of the shortwave radiative transfer in the MAECHAM5 general circulation model, the spectral resolution of the shortwave radiation parameterization used in the model has been increased and extended in the UV-B and UV-C bands. The upgraded shortwave parameterization is first validated offline with a 4 stream discrete-ordinate line-by-line model. Thereafter, two 20-years simulations with the MAECHAM5 middle atmosphere general circulation model are performed to evaluate the temperature changes and the dynamical feedbacks arising from the newly intro

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Pan, Wenyong, Kristopher A. Innanen, Yu Geng, and Junxiao Li. "Interparameter trade-off quantification for isotropic-elastic full-waveform inversion with various model parameterizations." GEOPHYSICS 84, no. 2 (2019): R185—R206. http://dx.doi.org/10.1190/geo2017-0832.1.

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Simultaneous determination of multiple physical parameters using full-waveform inversion (FWI) suffers from interparameter trade-off difficulties. Analyzing the interparameter trade-offs in different model parameterizations of isotropic-elastic FWI, and thus determining the appropriate model parameterization, are critical for efficient inversion and obtaining reliable inverted models. Five different model parameterizations are considered and compared including velocity-density, modulus-density, impedance-density, and two velocity-impedance parameterizations. The scattering radiation patterns a

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11

Yao, Mao-Sung, and Ye Cheng. "Cloud Simulations in Response to Turbulence Parameterizations in the GISS Model E GCM." Journal of Climate 25, no. 14 (2012): 4963–74. http://dx.doi.org/10.1175/jcli-d-11-00399.1.

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Abstract The response of cloud simulations to turbulence parameterizations is studied systematically using the GISS general circulation model (GCM) E2 employed in the Intergovernmental Panel on Climate Change’s (IPCC) Fifth Assessment Report (AR5). Without the turbulence parameterization, the relative humidity (RH) and the low cloud cover peak unrealistically close to the surface; with the dry convection or with only the local turbulence parameterization, these two quantities improve their vertical structures, but the vertical transport of water vapor is still weak in the planetary boundary la

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12

Yang, Junli, Jianglin Hu, Qiying Chen, and Weijun Quan. "Parameterization of downward long-wave radiation based on long-term baseline surface radiation measurements in China." Atmospheric Chemistry and Physics 23, no. 7 (2023): 4419–30. http://dx.doi.org/10.5194/acp-23-4419-2023.

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Abstract. Downward long-wave radiation (DLR) affects energy exchange between the land surface and the atmosphere and plays an important role in weather forecasting, agricultural activities, and the development of climate models. Because DLR is seldom observed at conventional radiation stations, numerous empirical parameterizations have been presented to estimate DLR from screen-level meteorological variables. The reliability and representativeness of parameterization depend on the coefficients regressed from the simultaneous observations of DLR and meteorological variables. Only a few previous

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13

Meng, Chunlei, and Huoqing Li. "Solar Radiation Partitioning and Surface Albedo Parameterization in the Hinterland of Taklimakan Desert." Advances in Meteorology 2019 (December 11, 2019): 1–8. http://dx.doi.org/10.1155/2019/9098576.

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Surface albedo is one of the key parameters of land surface radiation and energy balance. As surface albedoes for visible and near-infrared solar radiation are quite different, solar radiation partitioning is important to parameterize the total surface albedo and upward solar radiation. In this paper, a surface albedo parameterization scheme was introduced and a solar radiation partitioning method was developed to improve the simulation of the upward solar radiation. The simulation results were validated in a hinterland site of the Taklimakan Desert. The surface albedo is not only associated w

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14

Fomin, V. V., and T. Y. Vyruchalkina. "Assessing the accuracy of simulation of meteorological characteristics with the WRF model for the Caspian Sea." Hydrometeorological research and forecasting 4 (December 15, 2023): 72–85. http://dx.doi.org/10.37162/2618-9631-2023-4-72-85.

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The paper presents the accuracy estimates for the simulation of meteorological characteristics obtained from the WRF model with a spatial resolution of 6 km adapted for the Caspian Sea. It was used to simulate meteorological characteristics using various parameterizations of physical processes available in the WRF model. The model was verified using data from coastal weather stations for 2021. It was found that the best results in reproducing meteorological characteristics are achieved using the Thompson graupel scheme as a parameterization of physical processes, the Tiedtke scheme as a parame

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15

Zhu, Meilin, Tandong Yao, Wei Yang, Baiqing Xu, and Xiaojun Wang. "Evaluation of Parameterizations of Incoming Longwave Radiation in the High-Mountain Region of the Tibetan Plateau." Journal of Applied Meteorology and Climatology 56, no. 4 (2017): 833–48. http://dx.doi.org/10.1175/jamc-d-16-0189.1.

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AbstractAccurate evaluations of incoming longwave radiation (Lin) parameterization have practical implications for glacier and river runoff changes in high-mountain regions of the Tibetan Plateau (TP). To identify potential means of accurately predicting spatiotemporal variations in Lin, 13 clear-sky parameterizations combined with 10 cloud corrections for all-sky atmospheric emissivity were evaluated at five sites in high-mountain regions of the TP through temporal and spatial parameter transfer tests. Most locally calibrated parameterizations for clear-sky and all-sky conditions performed we

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16

Wang, Xin, Yilun Han, Wei Xue, Guangwen Yang, and Guang J. Zhang. "Stable climate simulations using a realistic general circulation model with neural network parameterizations for atmospheric moist physics and radiation processes." Geoscientific Model Development 15, no. 9 (2022): 3923–40. http://dx.doi.org/10.5194/gmd-15-3923-2022.

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Abstract. In climate models, subgrid parameterizations of convection and clouds are one of the main causes of the biases in precipitation and atmospheric circulation simulations. In recent years, due to the rapid development of data science, machine learning (ML) parameterizations for convection and clouds have been demonstrated to have the potential to perform better than conventional parameterizations. Most previous studies were conducted on aqua-planet and idealized models, and the problems of simulation instability and climate drift still exist. Developing an ML parameterization scheme rem

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17

RYBAK, O. O., R. SATYLKANOV, E. A. RYBAK, A. S. GUBANOV, I. A. KORNEVA, and KENJI TANAKA. "PARAMETERIZATION OF LONGWAVE RADIATION IN GLACIOLOGICAL APPLICATIONS." Meteorologiya i Gidrologiya, no. 9 (September 2022): 5–19. http://dx.doi.org/10.52002/0130-2906-2022-9-5-19.

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Downward longwave radiation (atmospheric counter-radiation) plays a significant role in the formation of the net radiation regime of a mountain glacier. For this reason, its role should not be underestimated in glaciological calculations, especially in the warm period of the year, during the melting season. Glaciological models often do not take into account individual components of the longwave radiation flux, for example, radiation reflected from the mountain slopes surrounding the glacier. The choice of the algorithm for the parameterization of counter-radiation and cloudiness affects the a

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18

Živković, Marina, Jean-François Louis, and Jean-Luc Moncet. "Sensitivity analysis of a radiation parameterization." Journal of Geophysical Research 100, no. D7 (1995): 13827. http://dx.doi.org/10.1029/95jd00983.

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19

Granados-Muñoz, María José, Michael Sicard, Roberto Román, et al. "Impact of mineral dust on shortwave and longwave radiation: evaluation of different vertically resolved parameterizations in 1-D radiative transfer computations." Atmospheric Chemistry and Physics 19, no. 1 (2019): 523–42. http://dx.doi.org/10.5194/acp-19-523-2019.

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Abstract. Aerosol radiative properties are investigated in southeastern Spain during a dust event on 16–17 June 2013 in the framework of the ChArMEx/ADRIMED (Chemistry-Aerosol Mediterranean Experiment/Aerosol Direct Radiative Impact on the regional climate in the MEDiterranean region) campaign. Particle optical and microphysical properties from ground-based sun/sky photometer and lidar measurements, as well as in situ measurements on board the SAFIRE ATR 42 French research aircraft, are used to create a set of different levels of input parameterizations, which feed the 1-D radiative transfer m

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20

Krasnopolsky, Vladimir M., Michael S. Fox-Rabinovitz, and Dmitry V. Chalikov. "New Approach to Calculation of Atmospheric Model Physics: Accurate and Fast Neural Network Emulation of Longwave Radiation in a Climate Model." Monthly Weather Review 133, no. 5 (2005): 1370–83. http://dx.doi.org/10.1175/mwr2923.1.

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Abstract A new approach based on a synergetic combination of statistical/machine learning and deterministic modeling within atmospheric models is presented. The approach uses neural networks as a statistical or machine learning technique for an accurate and fast emulation or statistical approximation of model physics parameterizations. It is applied to development of an accurate and fast approximation of an atmospheric longwave radiation parameterization for the NCAR Community Atmospheric Model, which is the most time consuming component of model physics. The developed neural network emulation

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21

Wang, Mengjia, Rui Sun, Anran Zhu, and Zhiqiang Xiao. "Evaluation and Comparison of Light Use Efficiency and Gross Primary Productivity Using Three Different Approaches." Remote Sensing 12, no. 6 (2020): 1003. http://dx.doi.org/10.3390/rs12061003.

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Light use efficiency (LUE), which characterizes the efficiency with which vegetation converts captured/absorbed radiation into organic dry matter through photosynthesis, is a key parameter for estimating vegetation gross primary productivity (GPP). Studies suggest that diffuse radiation induces a higher LUE than direct radiation in short-term and site-scale experiments. The clearness index (CI), described as the fraction of solar incident radiation on the surface of the earth to the extraterrestrial radiation at the top of the atmosphere, is added to the parameterization approach to explain th

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22

Gultepe, I., M. D. Müller, and Z. Boybeyi. "A New Visibility Parameterization for Warm-Fog Applications in Numerical Weather Prediction Models." Journal of Applied Meteorology and Climatology 45, no. 11 (2006): 1469–80. http://dx.doi.org/10.1175/jam2423.1.

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Abstract The objective of this work is to suggest a new warm-fog visibility parameterization scheme for numerical weather prediction (NWP) models. In situ observations collected during the Radiation and Aerosol Cloud Experiment, representing boundary layer low-level clouds, were used to develop a parameterization scheme between visibility and a combined parameter as a function of both droplet number concentration Nd and liquid water content (LWC). The current NWP models usually use relationships between extinction coefficient and LWC. A newly developed parameterization scheme for visibility, V

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23

Liu, Gang, Yangang Liu, and Satoshi Endo. "Evaluation of Surface Flux Parameterizations with Long-Term ARM Observations." Monthly Weather Review 141, no. 2 (2013): 773–97. http://dx.doi.org/10.1175/mwr-d-12-00095.1.

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Abstract Surface momentum, sensible heat, and latent heat fluxes are critical for atmospheric processes such as clouds and precipitation, and are parameterized in a variety of models ranging from cloud-resolving models to large-scale weather and climate models. However, direct evaluation of the parameterization schemes for these surface fluxes is rare due to limited observations. This study takes advantage of the long-term observations of surface fluxes collected at the Southern Great Plains site by the Department of Energy Atmospheric Radiation Measurement program to evaluate the six surface

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Helbig, N., and H. Löwe. "Shortwave radiation parameterization scheme for subgrid topography." Journal of Geophysical Research: Atmospheres 117, no. D3 (2012): n/a. http://dx.doi.org/10.1029/2011jd016465.

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25

Hensen, A., and J. C. H. van der Hage. "Parameterization of cosmic radiation at sea level." Journal of Geophysical Research 99, no. D5 (1994): 10693. http://dx.doi.org/10.1029/93jd01226.

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26

Cagnazzo, C., E. Manzini, M. A. Giorgetta, P. M. De F. Forster, and J. J. Morcrette. "Impact of an improved shortwave radiation scheme in the MAECHAM5 General Circulation Model." Atmospheric Chemistry and Physics 7, no. 10 (2007): 2503–15. http://dx.doi.org/10.5194/acp-7-2503-2007.

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Abstract. In order to improve the representation of ozone absorption in the stratosphere of the MAECHAM5 general circulation model, the spectral resolution of the shortwave radiation parameterization used in the model has been increased from 4 to 6 bands. Two 20-years simulations with the general circulation model have been performed, one with the standard and the other with the newly introduced parameterization respectively, to evaluate the temperature and dynamical changes arising from the two different representations of the shortwave radiative transfer. In the simulation with the increased

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27

Chang, Xiao, Benjamin Männel, and Harald Schuh. "An analysis of a priori and empirical solar radiation pressure models for GPS satellites." Advances in Geosciences 55 (May 21, 2021): 33–45. http://dx.doi.org/10.5194/adgeo-55-33-2021.

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Abstract. Among the different non-conservative forces acting on GPS satellites, solar radiation pressure (SRP) has the greatest influence and inappropriate modeling of it can introduce an acceleration with the order of 1 × 10−7 m s−2. There are a variety of empirical, analytical, and hybrid empirical-physical models to describe the SRP effect. Among them, the empirical model developed at the Center for Orbit Determination in Europe (CODE) and analytical models based on a box-wing prototype, namely box-shape bus with solar panels, are widely used in the International GNSS Service (IGS) communit

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Nieminen, T., P. Paasonen, H. E. Manninen, V. M. Kerminen, and M. Kulmala. "Parameterization of ion-induced nucleation rates based on ambient observations." Atmospheric Chemistry and Physics Discussions 10, no. 9 (2010): 21697–720. http://dx.doi.org/10.5194/acpd-10-21697-2010.

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Abstract. Atmospheric ions participate in the formation of new atmospheric aerosol particles, yet their exact role in this process has remained unclear. Here we derive a new simple parameterization for ion-induced nucleation or, more precisely, for the formation rate of charged 2-nm particles. The parameterization is semi-empirical in the sense that it is based on comprehensive results of one-year-long atmospheric cluster and particle measurements in the size range ∼1–42 nm within the EUCAARI (European Integrated project on Aerosol Cloud Climate and Air Quality interactions) project. Data from

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29

Shaffer, S. R., W. T. L. Chow, M. Georgescu, et al. "Multiscale Modeling and Evaluation of Urban Surface Energy Balance in the Phoenix Metropolitan Area." Journal of Applied Meteorology and Climatology 54, no. 2 (2015): 322–38. http://dx.doi.org/10.1175/jamc-d-14-0051.1.

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AbstractPhysical mechanisms of incongruency between observations and Weather Research and Forecasting (WRF) Model predictions are examined. Limitations of evaluation are constrained by (i) parameterizations of model physics, (ii) parameterizations of input data, (iii) model resolution, and (iv) flux observation resolution. Observations from a new 22.1-m flux tower situated within a residential neighborhood in Phoenix, Arizona, are utilized to evaluate the ability of the urbanized WRF to resolve finescale surface energy balance (SEB) when using the urban classes derived from the 30-m-resolution

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Oh, Ju-Won, and Tariq Alkhalifah. "Optimal full-waveform inversion strategy for marine data in azimuthally rotated elastic orthorhombic media." GEOPHYSICS 83, no. 4 (2018): R307—R320. http://dx.doi.org/10.1190/geo2017-0762.1.

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The orthorhombic (ORT) anisotropic description of earth layers can allow the capture of much of the earth’s anisotropic complexity. The inversion for high-resolution azimuthal variation of anisotropy is important for reservoir characterization, among other applications. A high-resolution description of the azimuth of fractures can help us to predict flow preferences. To verify the feasibility of multiparameter full-waveform inversion (FWI) for marine data assuming azimuthally rotated elastic ORT media, we have analyzed the radiation patterns and gradient directions of ORT parameters to the ref

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Popov, Zlatica, Zoltán Nagy, Györgyi Baranka, and Tamás Weidinger. "Assessments of Solar, Thermal and Net Irradiance from Simple Solar Geometry and Routine Meteorological Measurements in the Pannonian Basin." Atmosphere 12, no. 8 (2021): 935. http://dx.doi.org/10.3390/atmos12080935.

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In this paper, we discussed several different procedures for calculating irradiation from routine weather measurements and observations. There are between four and eight frequently used parameterizations of radiation balance components in meteorological preprocessors, and we investigated them. First of all, the estimated and measured solar and net irradiance were compared. Afterwards, the estimated and measured longwave irradiance were investigated. Then, we recalculated the net irradiance from the sum of global solar irradiance, longwave downwelling irradiance, reflect solar irradiance and up

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Yu, Shanshan, Xiaozhou Xin, Qinhuo Liu, Hailong Zhang, and Li Li. "An Improved Parameterization for Retrieving Clear-Sky Downward Longwave Radiation from Satellite Thermal Infrared Data." Remote Sensing 11, no. 4 (2019): 425. http://dx.doi.org/10.3390/rs11040425.

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Surface downward longwave radiation (DLR) is a crucial component in Earth’s surface energy balance. Yu et al. (2013) developed a parameterization for retrieving clear-sky DLR at high spatial resolution by combined use of satellite thermal infrared (TIR) data and column integrated water vapor (IWV). We extended the Yu2013 parameterization to Moderate Resolution Imaging Spectroradiometer (MODIS) data based on atmospheric radiative simulation, and we modified the parameterization to decrease the systematic negative biases at large IWVs. The new parameterization improved DLR accuracy by 1.9 to 3.1

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Yoon, Ji Won, Sujeong Lim, and Seon Ki Park. "Combinational Optimization of the WRF Physical Parameterization Schemes to Improve Numerical Sea Breeze Prediction Using Micro-Genetic Algorithm." Applied Sciences 11, no. 23 (2021): 11221. http://dx.doi.org/10.3390/app112311221.

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This study aims to improve the performance of the Weather Research and Forecasting (WRF) model in the sea breeze circulation using the micro-Genetic Algorithm (micro-GA). We found the optimal combination of four physical parameterization schemes related to the sea breeze system, including planetary boundary layer (PBL), land surface, shortwave radiation, and longwave radiation, in the WRF model coupled with the micro-GA (WRF-μGA system). The optimization was performed with respect to surface meteorological variables (2 m temperature, 2 m relative humidity, 10 m wind speed and direction) and a

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Messmer, Martina, Santos J. González-Rojí, Christoph C. Raible, and Thomas F. Stocker. "Sensitivity of precipitation and temperature over the Mount Kenya area to physics parameterization options in a high-resolution model simulation performed with WRFV3.8.1." Geoscientific Model Development 14, no. 5 (2021): 2691–711. http://dx.doi.org/10.5194/gmd-14-2691-2021.

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Abstract. Several sensitivity experiments with the Weather Research and Forecasting (WRF) model version 3.8.1 have been performed to find the optimal parameterization setup for precipitation amounts and patterns around Mount Kenya at a convection-permitting scale of 1 km. Hereby, the focus is on the cumulus scheme, with tests of the Kain–Fritsch, the Grell–Freitas, and no cumulus parameterizations. In addition, two longwave radiation schemes and two planetary boundary layer parameterizations are evaluated, and different nesting ratios and numbers of nests are tested. The precipitation amounts

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Myslenkov, Stanislav, Anna Shestakova, and Dmitry Chechin. "The impact of sea waves on turbulent heat fluxes in the Barents Sea according to numerical modeling." Atmospheric Chemistry and Physics 21, no. 7 (2021): 5575–95. http://dx.doi.org/10.5194/acp-21-5575-2021.

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Abstract. This paper investigates the impact of sea waves on turbulent heat fluxes in the Barents Sea. The Coupled Ocean–Atmosphere Response Experiment (COARE) algorithm, meteorological data from reanalysis and wave data from the WAVEWATCH III wave model results were used. The turbulent heat fluxes were calculated using the modified Charnock parameterization for the roughness length and several parameterizations that explicitly account for the sea wave parameters. A catalog of storm wave events and a catalog of extreme cold-air outbreaks over the Barents Sea were created and used to calculate

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Wolf, Kevin, André Ehrlich, Mario Mech, Robin J. Hogan, and Manfred Wendisch. "Evaluation of ECMWF Radiation Scheme Using Aircraft Observations of Spectral Irradiance above Clouds." Journal of the Atmospheric Sciences 77, no. 8 (2020): 2665–85. http://dx.doi.org/10.1175/jas-d-19-0333.1.

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Abstract A novel approach to compare airborne observations of solar spectral irradiances measured above clouds with along-track radiative transfer simulations (RTS) is presented. The irradiance measurements were obtained with the Spectral Modular Airborne Radiation Measurement System (SMART) installed on the High Altitude and Long Range Research Aircraft (HALO). The RTS were conducted using the operational ecRad radiation scheme of the Integrated Forecast System (IFS), operated by the European Centre for Medium-Range Weather Forecasts (ECMWF), and a stand-alone radiative transfer solver, the l

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Loridan, Thomas, C. S. B. Grimmond, Brian D. Offerle, et al. "Local-Scale Urban Meteorological Parameterization Scheme (LUMPS): Longwave Radiation Parameterization and Seasonality-Related Developments." Journal of Applied Meteorology and Climatology 50, no. 1 (2011): 185–202. http://dx.doi.org/10.1175/2010jamc2474.1.

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Abstract Recent developments to the Local-scale Urban Meteorological Parameterization Scheme (LUMPS), a simple model able to simulate the urban energy balance, are presented. The major development is the coupling of LUMPS to the Net All-Wave Radiation Parameterization (NARP). Other enhancements include that the model now accounts for the changing availability of water at the surface, seasonal variations of active vegetation, and the anthropogenic heat flux, while maintaining the need for only commonly available meteorological observations and basic surface characteristics. The incoming compone

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Leoncini, Giovanni, Roger A. Pielke, and Philip Gabriel. "From Model-Based Parameterizations to Lookup Tables: An EOF Approach." Weather and Forecasting 23, no. 6 (2008): 1127–45. http://dx.doi.org/10.1175/2008waf2007033.1.

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Abstract The goal of this study is to transform the Harrington radiation parameterization into a transfer scheme or lookup table, which provides essentially the same output (heating rate profile and short- and longwave fluxes at the surface) at a fraction of the computational cost. The methodology put forth here does not introduce a new parameterization simply derived from the Harrington scheme but, rather, shows that given a generic parameterization it is possible to build an algorithm, largely not based on the physics, that mimics the outcome of the parent parameterization. The core concept

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Lin, Yanluan, Leo J. Donner, and Brian A. Colle. "Parameterization of Riming Intensity and Its Impact on Ice Fall Speed Using ARM Data." Monthly Weather Review 139, no. 3 (2011): 1036–47. http://dx.doi.org/10.1175/2010mwr3299.1.

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Abstract Riming within mixed-phase clouds can have a large impact on the prediction of clouds and precipitation within weather and climate models. The increase of ice particle fall speed due to riming has not been considered in most general circulation models (GCMs), and many weather models only consider ice particles that are either unrimed or heavily rimed (not a continuum of riming amount). Using the Atmospheric Radiation Measurement (ARM) Program dataset at the Southern Great Plains (SGP) site of the United States, a new parameterization for riming is derived, which includes a diagnosed ri

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Shimpo, Akihiko, Masao Kanamitsu, Sam F. Iacobellis, and Song-You Hong. "Comparison of Four Cloud Schemes in Simulating the Seasonal Mean Field Forced by the Observed Sea Surface Temperature." Monthly Weather Review 136, no. 7 (2008): 2557–75. http://dx.doi.org/10.1175/2007mwr2179.1.

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Abstract The impacts of four stratiform cloud parameterizations on seasonal mean fields are investigated using the global version of the Experimental Climate Prediction Center (ECPC) global-to-regional forecast system (G-RSM). The simulated fields are compared with the International Satellite Cloud Climatology Project (ISCCP) data for clouds, the Global Precipitation Climatology Project data for precipitation, the Earth Radiation Budget Experiment and the Surface Radiation Budget data for radiation, and the National Centers for Environmental Prediction (NCEP)–Department of Energy (DOE) Atmosph

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Barthe, C., and M. C. Barth. "Evaluation of a new lightning-produced NO<sub>x</sub> parameterization for cloud resolving models and its associated uncertainties." Atmospheric Chemistry and Physics Discussions 8, no. 2 (2008): 6603–51. http://dx.doi.org/10.5194/acpd-8-6603-2008.

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Abstract. A new parameterization of the lightning-produced NOx has been developed for cloud-resolving models. This parameterization is based on three unique characteristics. First, the cells that can produce lightning are identified using a vertical velocity threshold. Second, the flash rate in each cell is estimated from the non-precipitation and precipitation ice mass flux product. Third, the source location is filamentary instead of volumetric as in previous parameterizations. This parameterization has been tested on the 10 July 1996 Stratospheric-Tropospheric Experiment: Radiation, Aerosol

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Nieminen, T., P. Paasonen, H. E. Manninen, K. Sellegri, V. M. Kerminen, and M. Kulmala. "Parameterization of ion-induced nucleation rates based on ambient observations." Atmospheric Chemistry and Physics 11, no. 7 (2011): 3393–402. http://dx.doi.org/10.5194/acp-11-3393-2011.

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Abstract. Atmospheric ions participate in the formation of new atmospheric aerosol particles, yet their exact role in this process has remained unclear. Here we derive a new simple parameterization for ion-induced nucleation or, more precisely, for the formation rate of charged 2-nm particles. The parameterization is semi-empirical in the sense that it is based on comprehensive results of one-year-long atmospheric cluster and particle measurements in the size range ~1–42 nm within the EUCAARI (European Integrated project on Aerosol Cloud Climate and Air Quality interactions) project. Data from

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Key, Jeffrey R., Yong Liu, and Robert S. Stone. "Development and evaluation of surface shortwave flux parameterizations for use in sea-ice models." Annals of Glaciology 25 (1997): 33–37. http://dx.doi.org/10.3189/s0260305500013756.

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The surface radiation budget of the polar regions strongly influences ice growth and melt. Thermodynamic sea-ice models therefore require accurate yet computationally efficient methods of computing radiative fluxes. In this paper a new parameterization of the downwelling shortwave radiation flux at the Arctic surface is developed and compared to a variety of existing schemes. Parameterized llnxes are compared to in situ measurements using data for one year at Barrow, Alaska. Our results show that the new parameterization can estimate the downwelling shortwave flux with mean and root mean squar

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Key, Jeffrey R., Yong Liu, and Robert S. Stone. "Development and evaluation of surface shortwave flux parameterizations for use in sea-ice models." Annals of Glaciology 25 (1997): 33–37. http://dx.doi.org/10.1017/s0260305500013756.

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The surface radiation budget of the polar regions strongly influences ice growth and melt. Thermodynamic sea-ice models therefore require accurate yet computationally efficient methods of computing radiative fluxes. In this paper a new parameterization of the downwelling shortwave radiation flux at the Arctic surface is developed and compared to a variety of existing schemes. Parameterized llnxes are compared to in situ measurements using data for one year at Barrow, Alaska. Our results show that the new parameterization can estimate the downwelling shortwave flux with mean and root mean squar

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Mölders, Nicole. "Plant- and Soil-Parameter-Caused Uncertainty of Predicted Surface Fluxes." Monthly Weather Review 133, no. 12 (2005): 3498–516. http://dx.doi.org/10.1175/mwr3046.1.

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Abstract Simulated surface fluxes depend on one or more empirical plant or soil parameters that have a standard deviation (std dev). Thus, simulated fluxes will have a stochastic error (or std dev) resulting from the parameters’ std dev. Gaussian error propagation (GEP) principles are used to calculate the std dev for fluxes predicted by the hydro–thermodynamic soil–vegetation scheme to identify prediction limitations due to stochastic errors, parameterization weaknesses, and critical parameters, and to prioritize which parameters to measure with higher accuracy. Relative errors of net radiati

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RYBAK, O. O., R. SATYLKANOV, E. A. RYBAK, A. S. GUBANOV, I. A. KORNEVA, and K. TANAKA. "PARAMETERIZATION OF SHORT-WAVE SOLAR IRRADIANCE FOR GLACIOLOGICAL APPLICATIONS." Meteorologiya i Gidrologiya, no. 8 (August 2021): 5–20. http://dx.doi.org/10.52002/0130-2906-2021-8-5-20.

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Solar irradiance is the most important factor which determines the thermal conditions of mountain glaciers. We use trigonometric formulae to calculate direct solar radiation incoming on any arbitrary oriented surface under the condition of absence of the atmosphere. Shading effect from the surrounding relief can also be evaluated rather precisely. Nevertheless, in order to obtain correct results, it is necessary to take into account atmospheric transmissivity, diffuse radiation, and influence of cloudiness. The paper presents a model for calculation of shortwave radiation, utilizing up-to-date

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Müller, Mathias D., and Dieter Scherer. "A Grid- and Subgrid-Scale Radiation Parameterization of Topographic Effects for Mesoscale Weather Forecast Models." Monthly Weather Review 133, no. 6 (2005): 1431–42. http://dx.doi.org/10.1175/mwr2927.1.

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Abstract Complex topography significantly modifies radiation fluxes at the earth’s surface. As spatial resolutions of mesoscale weather forecast models increase, terrain effects on radiation fluxes induced by slope aspect, slope angle, sky view factor, and shadowing also gain importance. A radiation parameterization scheme is hence designed to better represent these topographic influences to improve weather forecasts. The grid- and subgrid-scale radiation parameterization scheme allows computation of radiation fluxes for each weather forecast model grid cell by considering arbitrarily fine res

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ЯКШИНА, Д. Ф., Е. Н. ГОЛУБЕВА, and В. С. ГРАДОВ. "Numerical simulation of summer warming of Siberian shelf seas depending on short-wave radiation parameterization." Optika atmosfery i okeana 37, no. 6 (2024): 525–30. http://dx.doi.org/10.15372/aoo20240612.

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Основным источником летнего прогрева верхнего слоя сибирских арктических шельфовых морей является коротковолновая солнечная радиация. Радиационный поток затухает по мере прохождения сквозь водную толщу, при этом скорость затухания определяется оптическими свойствами воды, зависящими главным образом от концентрации взвешенного вещества. В численных моделях океана и морского льда усвоение коротковолновой солнечной радиации описывается различными параметризациями. В настоящей работе исследуется чувствительность региональной трехмерной численной модели океана и морского льда SibCIOM к двум парамет

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Rybak, O. O., R. Satylkanov, E. A. Rybak, A. S. Gubanov, I. A. Korneva, and K. Tanaka. "Parameterization of Shortwave Solar Radiation in Glaciological Applications." Russian Meteorology and Hydrology 46, no. 8 (2021): 495–506. http://dx.doi.org/10.3103/s106837392108001x.

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Harshvardhan, Roger Davies, David A. Randall, and Thomas G. Corsetti. "A fast radiation parameterization for atmospheric circulation models." Journal of Geophysical Research 92, no. D1 (1987): 1009. http://dx.doi.org/10.1029/jd092id01p01009.

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