We report fluxes and dry deposition velocities for 16 atmospheric compounds above a southeastern United States forest, including: hydrogen peroxide (H2O2), nitric acid (HNO3), hydrogen cyanide (HCN), hydroxymethyl hydroperoxide, peroxyacetic acid, organic hydroxy nitrates, and other multifunctional species derived from the oxidation of isoprene and monoterpenes. The data suggest that dry deposi...

Abstract. Local along-valley winds in four major valleys on the southern slope of Nepal Himalayas are studied by means high-resolution meteorological modelling. The Weather Research and Forecasting model is run with a 1 km horizontal grid spacing covering 4 d period December 2014. Model evaluation against observations from three automatic weather stations Khumbu Valley (one valleys) shows good ...

Abstract. During the Last Glacial Maximum (LGM), a very cold and dry period around 26.5–19 kyr BP, permafrost was widespread across Europe. In this work, we explore possible benefit of using regional climate model data to improve representation in France, decipher how atmospheric circulation affects boundaries models, test role ground thermal contraction cracking wedge development during LGM. W...

Abstract. To investigate the impacts of multiscale circulations on planetary boundary layer (PBL), we have carried out PBL thermodynamic structure field experiment with a Doppler wind profile lidar, microwave radiometer, and ceilometer from January 2018 to December 2019 in Beijing. We found that direct regulatory effect synoptic circulation worked through transporting accumulating pollutants fr...

Gaseous and size-segregated particulate PBDEs (specifically BDE-47, -99, -183, -207, and -209) in the air were measured in urban Guangzhou at 100 and 150 m above the ground in daytime and at night in August and December 2010, to assess dry deposition of these contaminants accurately with regards to influences of meteorological factors but without confounding surface effects. Particulate PBDEs w...

abstract many people know the important effects of caspian sea winds and storms on the economy of three provinces of iran including gilan, mazandaran, and golestan that they form one exclusive and extent area which have moderate and humid climate. this paper used a synoptic climatologically approach, which combine a number of atmospheric factors. using daily and monthly winds data including the...

Monteverde, Costa Rica harbors montane forests that exemplify the delicate balances among climate, hydrology, habitat, and development. Most of the annual precipitation to this region arrives during the wet season, but the importance of orographic precipitation during the dry and transitional seasons should not be underestimated. Development associated with ecotourism has put significant stress...

Time-series observations were conducted in the Dowleiswaram dam reservoir that was constructed on the largest monsoonal river in India to understand the source of inorganic carbon, and fluxes to the atmosphere. The reservoir stores water during dry period of six months and water increases during the period when Indian subcontinent receives significant rainfall. Significant modification of organ...

Several very large high-impact fires burned nearly 4,000 km2 of mesic forests in western Oregon during September 7–9, 2020. While infrequent, high-severity have occurred historically Oregon, the extreme nature this event warrants analyses climate and meteorological drivers. A strong blocking pattern led to an intrusion dry air downslope east winds Cascades following a warm-dry 60-day period tha...