Dust radiative forcing + satellite

Author: yuek

August undefined, 2024

The Aerosol Optical Depth (AOD) is a measure of solar attenuation by the particles in the atmosphere (dust, smoke haze etc.). A higher value of AOD indicates higher loads of atmospheric pollutants. AOD has been used as a matrix to investigate dust storms and pollution studies41,42,43. The area-averaged (5 °N–30 °N, … See more Figure 1 shows the time evolution of dust storm using the satellite image of Moderate Resolution Imaging Spectroradiometer (MODIS) and dust scores from … See more The AOD from reanalysis (MERRA-2 and CAMS) are compared with MODIS AOD to investigate their variability during the study period (June 1–30, 2024) … See more The angstrom parameter (ANG) explains the spectral dependence of aerosols. Additionally, it serves as a proxy for the size of the pollutant present in the atmosphere. … See more The time-averaged cross-platform AOD values are shown in Fig. 5. The MODIS AOD (Fig. 5a) clearly shows the large longitudinal extent of the event. The mean AOD … See more WebSatellite Data of Atmospheric Pollution for U.S. Air Quality Applications: Examples of Applications, Summary of Data End-User Resources, Answers to FAQs, and Common Mistakes to Avoid (124 citations) ... Her studies in Atmospheric sciences integrate themes in fields like Mineral dust, Wavelength and Radiative forcing. Her work in the fields of ...

Dust dominates high-altitude snow darkening and melt over high ... - Nature

WebKeywords: Dust aerosol, polluted aerosols, source contribution, long-range transport, vertical profile, optical properties, radiative forcing, meteorological parameters, mass flux . … WebApr 19, 2024 · By scaling dust depositions, we optimize simulated radiative forcing conditioned on satellite observations. The optimized model predicts that LAISI-induced radiative forcing in snow contributes to 4.1% to 5.8% of the annual discharge. philip johnson michigan

Case study of longwave contribution to dust radiative ... - Springer

WebThe aerosol radiative forcing at the bottom and the top of the atmosphere over China were obtained based on the long-term observations within SONET . It is determined that the … WebThe Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) mission provides unique measurements of vertical profiles of aerosols and clouds and their properties during day and night-time over all types of surfaces. ... and assess the radiative forcing and heating/cooling rates of atmospheric dust by performing radiative ... WebThe spatiotemporal variation of aerosol optical depth at 550 nm (AOD550), Ångström exponent at 470–660 nm (AE470–660), water vapor content (WVC), and shortwave (SW) … philip johnson glass house in winter

Heating rate profiles and radiative forcing due to a dust storm in …

Assessing Satellite-Derived Radiative Forcing From Snow …

Webamong the ﬁrst studies to examine the daytime diurnal variation of dust aerosols using satellite sensor data. 2. Data The VIRS and CERES on the TRMM satellite are used. The … WebJul 1, 2016 · Dust radiative forcing scenarios were considered for 1) clear-sky conditions and 2) all-sky conditions using satellite-based cloud observations. Comparisons against … philip johnson historyWebNov 20, 2015 · The regional mean‐directed radiative forcing due to dust are −28.98 ± 7.99 and −35.76 ± 10.61 W/m² of these two cases directly from satellite observations. truffles electronic city

"WebJun 17, 2024 · The satellite image on 15 March displays a dense dust plume that ravaged a large part of China, with an area of more than 3.8×106 km2, accounting for about 40 % of China's land area. Compared with 15 March, satellite images on 27 March show a weaker dust plume intensity, along with a reduced eastward influence and scope. " - Dust radiative forcing + satellite

Dust radiative forcing + satellite

Aerosol radiative forcing over the Indo-Gangetic plains during major …

WebMay 15, 2013 · In the dust layer, longwave radiation emitting by dust cools the atmosphere, which counteracts about 17% of shortwave heating of atmosphere during daytime and results in cooling of atmosphere simply during nighttime. At the same time, the atmosphere beyond the dust layer is warmed because of absorbing the LW radiation emitted by dust … Webon cloud radiative forcing using a radiative transfer model along with satellite data analysis. By examining the inﬂu-ence of Asian dust aerosols on the radiative forcing both at the TOA and the surface, this study should lead to a better un-derstanding of the interactions among dust aerosols, clouds and radiation. 2 Data and methodology

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WebOct 1, 2006 · The dusty cloud radiative forcing over the middle latitude regions of East Asia was estimated by using the 2-year (July 2002-June 2004) data of collocated clouds and … WebFeb 10, 2005 · Here, we propose a method to infer regional distribution of dust radiative properties using satellite remote sensing (using infrared and visible/UV channels) and demonstrate its application. 2. A Method to Infer Regional Characteristics of Dust Absorbing Efficiency 2.1. Technical Background

WebJul 1, 2024 · Radiative forcing Dust properties 1. Introduction Aerosols affects the Earth's radiative balance through the scattering and absorption of shortwave (SW) and longwave … WebDec 23, 2024 · Dust is a suspension of tiny mineral particles in the atmosphere, accounting for ∼70% of aerosol loading in the atmosphere. It can absorb and reflect solar and terrestrial radiation, (1,2) and alter cloud lifetime and cloud albedo by acting as efficient ice nuclei and cloud condensation nuclei. (3−7) Dust also contributes to air pollution.

WebOct 12, 2024 · The DRE of dust consists of two components. In the solar shortwave (SW) spectral region, dust aerosols reflect a fraction of solar radiation back to the space which … WebFor SeaWiFS, the swath data of Level 2 from 2000 to 2010 were used. This work is among the first systematical dust climatology studies over Central Asia, employing the prevailing long-term satellite datasets. The radiative effect of dust is highly dependent on the vertical structure of dust layers [25,26,27]. The vertical distribution ...

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WebJan 1, 2014 · Direct radiative forcing is defined as the change in the radiative flux by dust particles prior to any response by the climate (e.g., Hansen et al. 2005).Forcing is typically … philip johnson michigan obituaryWebJul 1, 2024 · The aerosol radiative forcing (ARF), forcing efficiency (FE) and heating rate profile (AHR) are determined throughout the dust trajectory in shortwave (SW) and longwave (LW) ranges. To do this, we integrate different satellite observations (CALIPSO and MODIS) and detailed radiative transfer modeling. truffles factsWebKeywords: Dust aerosol, polluted aerosols, source contribution, long-range transport, vertical profile, optical properties, radiative forcing, meteorological parameters, mass flux . Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. truffles fantasy orange piecesWebJan 17, 2014 · The radiative effects of dust particle shape have only minor impact on transport and emissions, with small (~5%) impact on top of … philip johnson interview truffles fancyWebApr 19, 2024 · By scaling dust depositions, we optimize simulated radiative forcing conditioned on satellite observations. The optimized model predicts LAISI‐induced radiative forcing in snow... philip johnson house ctWebJun 4, 2024 · The high dust loading in the lower atmosphere altered the radiative forcing by intercepting the sunlight reaching the surface. The highest value for the up/down ratio is … philip johnson loomis fargo heist