Cirrus cloud radiative forcing

Author: qreq

August undefined, 2024

http://people.atmos.ucla.edu/liou/Cirrus_&_Climate.pdf#:~:text=To%20comprehend%20the%20impact%20of%20cirrus%20clouds%20on,to%20calculate%20the%20global%20cirrus%20cloud%20radiative%20forcing. WebMay 8, 2024 · Global annual mean radiative forcing due to aircraft-induced clouds. RF due to a persistent contrails alone and b together with contrail cirrus from selected studies and assessments sorted by ...

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WebFeb 1, 2024 · Cirrus clouds are ubiquitous, long-lived, high-level ice clouds that exert a considerable global radiative effect on the climate system. This review assesses recent … WebJan 7, 1999 · I therefore estimate that the trend in cirrus amount over the continental regions of high air traffic (2.9%, as discussed above) would correspond locally to an additional cloud radiative forcing ... on the road again boy

Cirrus Cloud Top-of-the-Atmosphere Net Daytime Forcing in the …

WebOct 29, 2010 · [1] Midlatitude cirrus cloud radiative forcing (CRF) values at the tropopause over China are estimated using a radiative transfer model initialized by Earth-orbiting Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) and Moderate Resolution Imaging Spectroradiometer (MODIS) measurements. A derived diurnal mean … WebContrails and Cirrus Clouds from Aviation. Clouds can have either a cooling or a warming effect: They can cause warming by trapping long-wave (infrared) radiation from the Earth, and. They can cause cooling by reflecting short-wave (visible and ultraviolet) solar radiation back into space. Overall, however, clouds caused by air travel emissions ... WebOct 23, 2024 · Quantifying the radiative forcing due to aerosol–cloud interactions especially through cirrus clouds remains challenging because of our limited understanding of aerosol and cloud processes. In this study, we investigate the anthropogenic aerosol indirect forcing (AIF) through cirrus clouds using the Community Atmosphere Model … on the road again bellingham wa

Tropical cirrus cloud radiative forcing: Sensitivity studies

WebRadiative forcing caused by cirrus clouds and aerosols were computed using the data obtained with lidar installed at the Fukue Island observatory. The MTSAT data were used to discriminate the ... WebJan 1, 2024 · Fig. 2-2. Global distribution of average frequency of occurrence of cirrus clouds identified by CloudSat / CALIPSO within 5.0° lat × 5.0° lon grid boxes. These data are 1-yr averages of daylight and nighttime measurements and of single and multiple cirrus layers (from Sassen et al. 2008 ). View in gallery. Fig. 2-3. i organize for youWebApr 13, 2024 · Numerical simulations with a 1-dimensional slab ocean model suggests that the monsoon-induced UT cloud radiative forcing contributes partially to maintain and reinforce the SST cold tongue with a tendency of about 0.08 K in 6 days or about 1/6 of one standard deviation of the Cold Tongue Index in December. The latent heat flux due to the ... iorg supreme assembly

"WebThin cirrus is usually considered to have positive radiative forcing and thick cirrus has negative radiative forcing. Ice water content and ice size distribution also determines cirrus radiative properties. The larger ice … " - Cirrus cloud radiative forcing

Cirrus cloud radiative forcing

Air traffic may increase cirrus cloudiness Nature

WebAug 31, 1999 · A parametric study of the instantaneous radiative impact of contrails is presented using three different radiative transfer models for a series of model atmospheres and cloud parameters. Contrails are treated as geometrically and optically thin plane parallel homogeneous cirrus layers in a static atmosphere. The ice water content is … WebDec 1, 2009 · The radiative effects of tropical thin cirrus clouds were studied on the basis of the retrieved cirrus optical depths, the atmospheric profiles derived from the …

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WebNov 2, 2024 · Cirrus clouds are white in color, wispy (like a horse's tail), and found at high elevations of 5 to 10 miles above the ground. These clouds cover roughly one-third of the globe and are the most ... WebDec 29, 2014 · In addition to direct radiative forcing, planetary-scale transport of BC to the Arctic region may significantly impact the surface albedo of this region through wet and dry deposition on ice and snow. ... inclusion of a numerical code for the formation of upper tropospheric cirrus cloud ice particles [26,27]; (3) upgrade of the radiative ...

WebApr 6, 2024 · The COVID-19 pandemic led to a 72% reduction of air traffic over Europe in March–August 2024 compared to 2024. Modeled contrail cover declined similarly, and computed mean instantaneous radiative contrail forcing dropped regionally by up to 0.7 W m −2.Here, model predictions of cirrus optical thickness and the top-of-atmosphere …

WebJan 8, 2024 · Abstract Cirrus cloud daytime top-of-the-atmosphere radiative forcing (TOA CRF) is estimated for a 2-yr NASA Micro-Pulse Lidar Network (532 nm; MPLNET) dataset collected at Fairbanks, Alaska. Two-year-averaged daytime TOA CRF is estimated to be between −1.08 and 0.78 W·m−2 (from −0.49 to 1.10 W·m−2 in 2024, and from −1.67 to … WebMay 1, 2024 · Abstract Daytime top-of-the-atmosphere (TOA) cirrus cloud radiative forcing (CRF) is estimated for cirrus clouds observed in ground-based lidar observations at Singapore in 2010 and 2011. Estimates are derived both over land and water to simulate conditions over the broader Maritime Continent archipelago of Southeast Asia. Based on …

WebApr 13, 2024 · This cloud radiative forcing is observed partly over the cold tongue in sea surface temperature (SST) in the South China Sea. Numerical simulations with a 1-dimensional slab ocean model suggests that the monsoon-induced UT cloud radiative forcing contributes partially to maintain and reinforce the SST cold tongue with a …

WebJohannes Quaas, Edward Gryspeerdt, in Aerosols and Climate, 2024. 12.3.3 Challenges in observing aerosol-cloud interactions. The key challenge in determining the magnitude of … iorg texasWebJan 1, 2024 · The diurnal variation of cirrus cloud radiative forcing (CRF) is calculated using the Fu-Liou model, involving 96 cirrus profiles per day to represent DCC ci accurately. In each season, the diurnal cycle amplitude of CRF is more than 40 W/m 2 for shortwave (SW), and less than 16 W/m 2 for longwave (LW). ior healthcareWebactual data to calculate the global cirrus cloud radiative forcing. Cirrus and greenhouse warming. The first issue concerning the role of cirrus clouds in the greenhouse warming … ior hiokiWebOne-year of continuous ground-based lidar observations (2012) are analyzed for single-layer cirrus clouds at the NASA Micro Pulse Lidar Network site at the Goddard Space Flight … iorg supreme assembly 2022WebSep 1, 1994 · If the observed solar cloud forcing in excess of 100 W-m −2 is to be attributed to cirrus anvils alone, then the optical depth of these anvils must be at least 5 … on the road again canned heat chords lyricsWebQuestion: Cloud Radiative Forcing: here you will apply your knowledge of blackboard emission to understand the competing effects cloud on the Earth’s radiation budget. Consider two oceanic regions in the deep Tropics. Assume the ocean has an albedo of 0.05 in both regions and that the effective emission temperature under clear skies is 0 oC … on the road again bus toursWebCloud radiative forcing, the difference between the top-of-atmosphere radiative fluxes for all-sky and clear skies, is a straightforward metric to gauge the climate impacts of … iorgute ingles