Results 71 to 80 of about 15,592 (230)

The role of soil moisture in the inland penetration of Indian monsoon low‐pressure systems

Quarterly Journal of the Royal Meteorological Society, EarlyView.
We use the Advanced Weather Research and Forecasting model to examine the role of soil moisture in the inland penetration of Indian monsoon low‐pressure systems (LPSs). We find that LPSs penetrate deeply into India despite a dry land surface; however, their inland penetration is adversely affected when there is a reduction in the total surface heat ...
Akshay Deoras, Kieran M. R. Hunt, Andrew G. Turner   +2 more
wiley   +1 more source

Comparative Evaluation of Satellite- Based Merra-2 against Ground-based Data for PM2.5 and TC Concentrations in Ghaziabad, India [PDF]

E3S Web of Conferences
This study compares satellite-based observations of PM2.5 and Total Carbon (TC) concentrations derived from NASA’s MERRA-2 reanalysis dataset for the Ghaziabad region with ground-based observations at two sites (Site A and Site B) from June 2018 to May ...
Sinha Rishika, Madan Preha, Singh Rahul, Gupta Lovleen   +3 more
doaj   +1 more source

Downwelling surface solar irradiance in the tropical Atlantic Ocean: a comparison of re-analyses and satellite-derived data sets to PIRATA measurements [PDF]

Ocean Science, 2018
This paper assesses the merits and drawbacks of several data sets of solar downwelling radiation received at the horizontal surface of the tropical Atlantic Ocean where the magnitude of this radiation and its spatial and temporal variability are not ...
M. Trolliet, J. P. Walawender, B. Bourlès, A. Boilley, J. Trentmann, P. Blanc, M. Lefèvre, L. Wald   +7 more
doaj   +1 more source

Structure and Dynamics of the Quasi-Biennial Oscillation in MERRA-2

Journal of Climate, 2016
Abstract The structure, dynamics, and ozone signal of the quasi-biennial oscillation (QBO) produced by the 35-yr NASA Modern-Era Retrospective Analysis for Research and Applications, version 2 (MERRA-2), are examined based on monthly mean output. Along with the analysis of the QBO in assimilation winds and ozone, the QBO forcings created
Lawrence, Coy, Krzysztof, Wargan, Andrea M, Molod, William R, McCarty, Steven, Pawson   +4 more
openaire   +2 more sources

Moisture inversions in the central Arctic: Product assessment and long‐wave radiative effect

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This study evaluates the integrated water vapour and the vertical distribution of water vapour of state‐of‐the‐art reanalyses, weather forecast models, and ground‐ and space‐based remote‐sensing products in the central Arctic. A particular focus lies on the representation of humidity inversions and the quantification of the long‐wave radiative effect ...
Andreas Walbröl, Susanne Crewell, Carola Barrientos‐Velasco, Giovanni Chellini, Hannes J. Griesche, Janna E. Rückert, Kerstin Ebell   +6 more
wiley   +1 more source

Long-term analysis of the Antarctic total ozone zonal asymmetry by MERRA-2 and CMIP6 data

Український антарктичний журнал, 2020
Objectives. To analyze ozone monthly mean data from the MERRA-2 reanalysis and CMIP6 model. To determine Antarctic ozone asymmetry climatology for austral spring months (September, October, November) over the 1980–2014 period. Methods.
O. Ivaniha
doaj   +1 more source

Comparison of mean age of air in five reanalyses using the BASCOE transport model [PDF]

Atmospheric Chemistry and Physics, 2018
We present a consistent intercomparison of the mean age of air (AoA) according to five modern reanalyses: the European Centre for Medium-Range Weather Forecasts Interim Reanalysis (ERA-Interim), the Japanese Meteorological Agency's Japanese 55-year ...
S. Chabrillat, C. Vigouroux, Y. Christophe, A. Engel, Q. Errera, D. Minganti, B. M. Monge-Sanz, A. Segers, E. Mahieu   +8 more
doaj   +1 more source

Hourly and Daily PM_2.5 Estimations Using MERRA‐2: A Machine Learning Approach

Earth and Space Science, 2022
AbstractHealth and environmental hazards related to high pollution concentrations have become a serious issue from public policy perspectives and human health. Using Machine Learning (ML) approach, this research aims to improve the estimation of grid‐wise PM2.5, a criteria pollutant, by reducing systematic bias from speciation provided by MERRA‐from ...
Alqamah Sayeed, Paul Lin, Pawan Gupta, Nhu Nguyen Minh Tran, Virginie Buchard, Sundar A Chirstopher   +5 more
openaire   +2 more sources

Indian and African monsoons: Trajectories and interactions

Quarterly Journal of the Royal Meteorological Society, EarlyView.
The catch basin of marine air particles of the Indian monsoon is the tropical Indian ocean, whilst that of the African monsoon is the east tropical Atlantic. However, the oscillations induced by the monsoonal interactions favour particle exchange between the two basins. These transitions are abrupt in the presence of stochastic resonance. The monsoonal
Giovanni A. Dalu, Marina Baldi
wiley   +1 more source

The Moisture Budget of the Polar Atmosphere in MERRA

Journal of Climate, 2011
Abstract The atmospheric moisture budget from the Modern Era Retrospective-Analysis for Research and Applications (MERRA) is evaluated in polar regions for the period 1979–2005 and compared with previous estimates, accumulation syntheses over polar ice sheets, and in situ Arctic precipitation observations.
Richard I. Cullather, Michael G. Bosilovich   +1 more
openaire   +1 more source