In this study, warm and moist air intrusions (WaMAI) over the sea sectors of Kara, Laptev, East Siberian Beaufort from 1979 to 2018 are identified in ERA5 reanalysis their air-mass transformation is analysed using interpolation satellite products along trajectories. The analysis shows that WaMAIs, driven by blocking high-pressure systems respective ocean sectors, induce surface warming (11–18 W...

Abstract In the tropics, absorbed solar radiation is larger than outgoing longwave radiation, while opposite true at high latitudes. This basic fact implies a poleward energy transport (PET) in both hemispheres, which accomplished by atmosphere and oceans. The magnitude of PET determined top gradient net flux, small changes to this quantity must change total absence heat uptake. We analyze larg...

Surface downward longwave radiation (SDLR) is a major component of the energy budget. Although studies have reported spatiotemporal variations SDLR in China, coverage situ measurements used always limited. In this study, gradient boosting regression tree (GBRT) was developed to reconstruct based on air temperature (Ta), relative humidity (RH), and shortwave (DSR). Ground collected at Baseline R...

A linear analysis is applied to a multi-thousand member ‘‘perturbed physics‘‘ GCM ensemble to identify the dominant physical processes responsible for variation in climate sensitivity across the ensemble. Model simulations are provided by the distributed computing project, climate prediction.net . A principal component analysis of model radiative response reveals two dominant independent feedba...

ENSO surface longwave radiation forcing over the tropical Pacific K. G. Pavlakis, D. Hatzidimitriou, E. Drakakis, C. Matsoukas, A. Fotiadi, N. Hatzianastassiou, and I. Vardavas Foundation for Research and Technology-Hellas, Heraklion, Crete, Greece Department of General Applied Science, Technological Educational Institute of Crete, Greece Department of Physics, University of Crete, Crete, Greec...

The Arctic radiation balance is strongly affected by clouds and surface albedo. Prior work has identified Arctic cloud liquid water path (LWP) and surface radiative flux biases in the CommunityAtmosphereModel, version 5 (CAM5), and reductions to these biases with improved mixed-phase ice nucleation schemes. Here, CAM5 net top-of-atmosphere (TOA) Arctic radiative flux biases are quantified along...

A radiation model is constructed that includes radiative interactions with atmospheric gases, as well as parameterized treatments of scattering and absorption/emission by cloud droplets and haze particles. A unified treatment of solar and terrestrial radiation is obtained by using identical cloud and haze parameterization procedure for the shortwave and longwave region. The influence of the rel...

The Earth Radiation Budget at the top of the atmosphere quantifies how the Earth gains energy from the Sun and loses energy to space. It is of fundamental importance for climate and climate change. In this paper, the current state-of-the-art of the satellite measurements of the Earth Radiation Budget is reviewed. Combining all available measurements, the most likely value of the Total Solar Irr...

Abstract Glaciers in the Southern Patagonia Icefield (SPI) have been shrinking recent decades, but due to a lack of field observations, understanding drivers ablation is limited. We present distributed surface energy balance model, forced with meteorological observations from west–east transect located north SPI. Between October 2015 and June 2016, humid warm on-glacier conditions prevailed on ...