Atmosphere  

Chao Gao, Xuelei Zhang, Wenyong Wang, Aijun Xiu, Daniel Q. Tong and Weiwei Chen

Henrique Do Nascimento Camelo, Paulo Sérgio Lucio, João Bosco Verçosa Leal Junior, Daniel Von Glehn dos Santos and Paulo Cesar Marques de Carvalho

This work proposes hybrid models combining time-series models (using linear functions) and artificial intelligence (using a nonlinear function) that can be used to provide monthly mean wind speed predictions for the Brazilian northeast region. These might... see more

Lin Si and Parisa A. Ariya

Mercury is one of the most toxic metals and has global importance due to the biomagnification and bioaccumulation of organomercury via the aquatic food web. The physical and chemical transformations of various mercury species in the atmosphere strongly in... see more

Nikolaos Barmparesos, Margarita Niki Assimakopoulos, Vasiliki D. Assimakopoulos, Nikolaos Loumos, Maria Aliki Sotiriou and Athanasios Koukoumtzis

This paper presents experimental results from a typical school building in Athens, equipped partly with a green roof system (GRS). Environmental monitoring took place in six classrooms located both under the concrete roof and the GRS sectors as well as in... see more

Kuang Xiao, Yuku Wang, Guang Wu, Bin Fu and Yuanyuan Zhu

Most cities in China are experiencing severe air pollution due to rapid economic development and accelerated urbanization. Long-term air pollution data with high temporal and spatial resolutions are needed to support research into physical and chemical pr... see more

Hyun-Goo Kim, Jin-Young Kim and Yong-Heack Kang

This study evaluated the applicability of long-term datasets among third-generation reanalysis data CFSR, ERA-Interim, MERRA, and MERRA-2 to determine which dataset is more suitable when performing wind resource assessment for the ‘Southwest 2.5 GW Offsho... see more

Olga Yu. Antokhina, Pavel N. Antokhin, Elena V. Devyatova and Yuliya V. Martynova

Western Siberia is a large area in Northern Eurasia, which lies between the Urals and the Yenisei River. The atmospheric blocking events are not a frequent phenomenon in this region. Nevertheless, they noticeably affect the weather and living conditions o... see more

Ang Zhang, Haiyun Shi, Tiejian Li and Xudong Fu

Rainfall stations of a certain number and spatial distribution supply sampling records of rainfall processes in a river basin. Uncertainty may be introduced when the station records are spatially interpolated for the purpose of hydrological simulations. T... see more

Richard Ménard and Martin Deshaies-Jacques

We present a general theory of estimation of analysis error covariances based on cross-validation as well as a geometric interpretation of the method. In particular, we use the variance of passive observation-minus-analysis residuals and show that the tru... see more

Yun Liang, Yan Du, Lianyi Zhang, Xiaotong Zheng and Shuang Qiu

The Sea Surface Temperature (SST) in the South Tropical Indian Ocean (STIO) displays significant intraseasonal oscillation (ISO) in two regions. A striking 30–50-day ISO found over the east of thermocline ridge (Region A, 80–90° E, 6–12° S), as identified... see more

Rim Zitouna-Chebbi, Laurent Prévot, Amal Chakhar, Manel Marniche-Ben Abdallah and Frederic Jacob

There is a strong need for long term observations of land surface fluxes such as actual evapotranspiration (ETa). Eddy covariance (EC) method is widely used to provide ETa measurements, and several gap-filling methods have been proposed to complete inhere... see more

Xiong Chen, Xing Liu, Xin Li, Mingyang Liu and Minghao Yang

In this paper, the performances of 12 CMIP5 (Coupled Model Intercomparison Project phase 5) models for simulating the climatology and interannual variability of the East Asian trough (EAT) are assessed using the National Centers for Environmental Predicti... see more

Mariusz Ptak, Arkadiusz M. Tomczyk and Dariusz Wrzesinski

The objective of the paper was the determination of the effect of teleconnection patterns (North Atlantic Oscillation (NAO), Arctic Oscillation (AO), East Atlantic pattern (EA), East Atlantic/Western Russia (EAWR), and Scandinavian pattern (SCAND)) on cha... see more

Mona Kurppa, Antti Hellsten, Mikko Auvinen, Siegfried Raasch, Timo Vesala and Leena Järvi

Buildings and vegetation alter the wind and pollutant transport in urban environments. This comparative study investigates the role of orientation and shape of perimeter blocks on the dispersion and ventilation of traffic-related air pollutants, and the s... see more

Carla Viegas, Ana Monteiro, Liliana Aranha Caetano, Tiago Faria, Elisabete Carolino and Susana Viegas

Ju Yang, Wenlai Xu and Huiyu Cheng

The concentrations of polycyclic aromatic hydrocarbons (PAHs) in the air of Chengdu, a southwest city of China, were determined from March 2015 to February 2016. Here, two diagnostic ratios (DR) were determined and a principal component analysis/multiple ... see more

Xin Wang, Zhenxing Shen, Yaling Zeng, Fobang Liu, Qian Zhang, Yali Lei, Hongmei Xu, Junji Cao and Liu Yang

Day-night PM10-bound PAHs were studied at an urban site of Xi’an from 20 December 2006 to 28 October 2007. The annual mean concentration of nighttime PAHs (285.0 ng m-3) was higher than that in daytime (239.4 ng m-3). A significant difference of PAH conce... see more

Robert Zakinyan, Arthur Zakinyan, Roman Ryzhkov and Julia Semenova

In the present work, an analytical model of the vortex motion basic state of the dry atmosphere with nonzero air velocity divergence is constructed. It is shown that the air parcel moves along the open curve trajectory of spiral geometry. It is found that... see more

Lena Merkulova, Eyal Freud, E. Monica Mårtensson, E. Douglas Nilsson and Paul Glantz

The surface-wind speed influences on aerosol optical depth (AOD), derived from the Moderate Resolution Imaging Spectroradiometer (MODIS) Aqua daily observations over the central North Pacific during the period 2003–2016, have been investigated in this stu... see more

Qibin Lao, Liping Jiao, Fajin Chen, Liqi Chen and Xia Sun

To explore the polychlorinated biphenyl (PCB) pollution characteristics of atmospheric particles, influential factors, and dry deposition fluxes, 28 PCB congeners were examined over a 2-year period in the environment of an isolated island in Fujian Provin... see more

Paola Di Vaio, Elisa Magli, Giuseppe Caliendo, Angela Corvino, Ferdinando Fiorino, Francesco Frecentese, Irene Saccone, Vincenzo Santagada, Beatrice Severino, Giuseppe Onorati, Giuseppina D’Onofrio Freda, Cosimo Manzo and Elisa Perissutti

Iván Y. Hernández-Paniagua, Gema L. Andraca-Ayala, Ulises Diego-Ayala, Luis G. Ruiz-Suarez, Juan C. Zavala-Reyes, Silvia Cid-Juárez, Luis Torre-Bouscoulet, Laura Gochicoa-Rangel, Irma Rosas-Pérez and Arón Jazcilevich

Hanna Hoglind, Sofia Eriksson and Katarina Gardfeldt

Mercury is a toxic pollutant emitted from both natural sources and through human activities. A global interest in atmospheric mercury has risen ever since the discovery of the Minamata disease in 1956. Properties of gaseous elemental mercury enable long r... see more

Gourihar Kulkarni

This laboratory study evaluates an experimental set-up to study the immersion freezing properties of ice residuals (IRs) at a temperature ranging from -26 to -34 °C using two continuous-flow diffusion chamber-style ice nucleation chambers coupled with a v... see more

Manasi Mahish, Anne Jefferson and Don R. Collins

Thomas Huld, Elena Paietta, Paolo Zangheri and Irene Pinedo Pascua

Cassandra J. Gaston, John F. Cahill, Douglas B. Collins, Kaitlyn J. Suski, Jimmy Y. Ge, Anne E. Barkley and Kimberly A. Prather

Marine aerosols are a globally significant contributor to aerosol-cloud-climate interactions; however, the impact that different sources of pollution and natural emissions from the ocean have on the water uptake properties of marine aerosols remains large... see more

Zixuan Yang, Antoni Calderer, Sida He, Fotis Sotiropoulos, James D. Doyle, David D. Flagg, Jamie MacMahan, Qing Wang, Brian K. Haus, Hans C. Graber and Lian Shen

We have performed large-eddy simulations (LES) to study the effect of complex land topography on the atmospheric boundary layer (ABL) in coastal areas. The areas under investigation are located at three beaches in Monterey Bay, CA, USA. The sharp-interfac... see more

Mikhail Varentsov, Hendrik Wouters, Vladimir Platonov and Pavel Konstantinov

Urbanization leads to distinct meteorological features of urban environments, and one the best-known is the urban heat island (UHI) effect. For megacities, these features become mesoscale phenomena (scale = 10 km) that are amplified by the tropospheric fe... see more

Jorge E. Pachón, Boris Galvis, Oscar Lombana, Luis Gabriel Carmona, Sandra Fajardo, Alexander Rincón, Sandra Meneses, Rafael Chaparro, Robert Nedbor-Gross and Barron Henderson