Energy Budget of the Earth

2020 ◽  
pp. 1-9
Author(s):  
Jean-Claude Mareschal ◽  
Claude Jaupart
Keyword(s):  
Energy Budget ◽  
The Earth

Geoneutrinos and the energy budget of the Earth

2012 ◽  
Vol 54 ◽  
pp. 43-54 ◽  
Author(s):  
Jean-Claude Mareschal ◽  
Claude Jaupart ◽  
Catherine Phaneuf ◽  
Claire Perry
Keyword(s):  
Energy Budget ◽  
The Earth

scholarly journals Scattering ratio profiles retrieved from ALADIN/Aeolus and CALIOP/CALIPSO lidar observations: instantaneous overlaps, statistical comparison, and sensitivity to high clouds

2021 ◽  
Author(s):  
Artem Feofilov ◽  
Helene Chepfer ◽  
Vincent Noel ◽  
Marjolaine Chiriaco
Keyword(s):  
Energy Budget ◽  
Climate Models ◽  
Longwave Radiation ◽  
Vertical Resolution ◽  
Cloud Detection ◽  
The Earth ◽  
Vertical Grid ◽  
Scattering Ratio ◽  
Planetary Albedo ◽  
Atmospheric Backscatter

<p>Clouds and aerosols play an important role in the Earth’s energy budget through a complex interaction with solar, atmospheric, and terrestrial radiation, and air humidity. Optically thick clouds efficiently reflect the incoming solar radiation and, globally, clouds are responsible for about two thirds of the planetary albedo. Thin cirrus trap the outgoing longwave radiation and keep the planet warm. Aerosols scatter or absorb sunlight depending on their size and shape and interact with clouds in various ways.</p><p>Due to the importance of clouds and aerosols for the Earth’s energy budget, global satellite observations of their properties are essential for climate studies, for constraining climate models, and for evaluating cloud parameterizations. Active sounding from space by lidars and radars is advantageous since it provides the vertically resolved information. This has been proven by CALIOP lidar which has been observing the Earth’s atmosphere since 2006. Another instrument of this kind, CATS lidar on-board ISS provided measurements for over 33 months starting from the beginning of 2015. The ALADIN lidar on-board ADM/Aeolus has been measuring horizontal winds and aerosols/clouds since August 2018. More lidars are planned – in 2022, the ATLID/EarthCare lidar will be launched and other space-borne lidars are in the development phase.</p><p>In this work, we compare the scattering ratio products retrieved from ALADIN and CALIOP observations. The former is aimed at 35 deg from nadir, it measures the atmospheric backscatter at 355nm from nadir, is capable of separating the molecular and particular components (HSRL), and provides the profiles with a vertical resolution of ~1km up to 20km altitude.  The latter, operating at 532nm is aimed at 3 deg from nadir and measures the total backscatter up to 40 km. Its natural vertical resolution is higher than that of ALADIN, but the scattering ratio product used in the comparison is provided at ~0.5km vertical grid.</p><p>We have performed a search of nearly simultaneous common volume observations of atmosphere by these two instruments for the period from 28/06/2019 through 31/12/2019 and analyzed the collocated data. We present the zonal averages of scattering ratios as well as the instantaneous profile comparisons and the statistical analysis of cloud detection, cloud height agreement, and temporal evolution of these characteristics.</p><p>The preliminary conclusion, which can be drawn from this analysis, is that the general agreement of scattering ratio profiles retrieved from ALADIN and CALIOP observations is good up to 6-7 km height whereas in the higher atmospheric layers ALADIN is less sensitive to clouds than the CALIOP. This lack of sensitivity might be compensated by further averaging of the input signals and/or by an updating of the retrieval algorithms using the collocated observations dataset provided in the present work.</p>

The energy budget of the earth–atmosphere system in Europe

Tellus ◽  
1981 ◽  
Vol 33 (4) ◽  
pp. 360-371 ◽  
Author(s):  
Mikko Alestalo
Keyword(s):  
Energy Budget ◽  
Earth Atmosphere ◽  
The Earth ◽  
Atmosphere System

scholarly journals Estimations of the aerosols direct radiative effects in the atmosphere over Kyiv from the AERONET sun-photometer measurements in 2008–2019

2019 ◽  
pp. 38-45
Author(s):  
V. Danylevsky
Keyword(s):  
Energy Budget ◽  
Radiative Forcing ◽  
Climate System ◽  
The Sun ◽  
International Network ◽  
Basic Properties ◽  
The Earth ◽  
Literary Sources ◽  
Sun Photometer ◽  
Basic Features

The article describes briefly the problem of the aerosols influence on the energetic budget of the Earth whole climate system and of the atmosphere particularly. The literary sources comprising such estimations are analyzed and aerosols basic properties are presented which are necessary to determine the quantitative estimations of the aerosols climatology effects. Basic terms and definitions are stated that are using to estimate the influence of the external and internal agents of the climate system on its energy budget. Basic features of the algorithms used to compute the co-called radiative forcing from data of the sun-photometer international network AERONET briefly described. The estimations of the aerosols radiative forcing obtained from measurements with the sun-photometer at the Kyiv AERONET site starting from 2008 are presented. Also the comparison of the Kyiv aerosol RF data to the aerosol RF data at some others urban regions of the globe are presented.

Energy Budget of the Earth

2011 ◽  
pp. 285-291 ◽  
Author(s):  
Jean-Claude Mareschal ◽  
Claude Jaupart
Keyword(s):  
Energy Budget ◽  
The Earth

A NEW BASIC ONE-DIMENSIONAL ONE-LAYER MODEL OBTAINS EXCELLENT AGREEMENT WITH THE OBSERVED EARTH TEMPERATURE

2011 ◽  
Vol 22 (05) ◽  
pp. 449-455
Author(s):  
RAINER LINK ◽  
HORST-JOACHIM LÜDECKE
Keyword(s):  
Excellent Agreement ◽  
Energy Budget ◽  
Wave Radiation ◽  
Atmospheric Layer ◽  
Layer Model ◽  
One Dimensional ◽  
Global Circulation Models ◽  
The Earth ◽  
Long Wave ◽  
Long Wave Radiation

The Earth radiation and energy budget is calculated by a manifold of rather complex Global Circulation Models. Their outcome mostly cannot identify integral radiation or energy budget relations. Therefore it is reasonable to look at more basic models to identify the main aspects of the model results. The simplest one of all of those is a one-dimensional one-layer model. However, most of these models — two are discussed here — suffer the drawback that they do not include essential contributions and relations between the atmospheric layer and the Earth. The one-dimensional one-layer model presented here integrates sensible and latent heat, the absorption of solar radiation and the direct emission of the long wave radiation to space in addition to the standard correlations. For the atmospheric layer two different long wave fluxes are included, top of atmosphere to space and bulk emission to Earth. The reflections of long wave radiation are taken into account. It is shown that this basic model is in excellent agreement with the observed integrated global energy budget.

Towards Moon-based monitoring of energy budget of the earth climate system

2016 ◽  
Author(s):  
Shaopeng Huang ◽  
Jingjuan Liao ◽  
Jie Guang ◽  
Jiangtao Wu ◽  
Shengshan Bi ◽  
...  
Keyword(s):  
Energy Budget ◽  
Climate System ◽  
The Earth
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