Simultaneous observations of aerosols, gases, and precipitation chemistry were carried out at the cloud base level and the surface during the fall of 1979, the winter of 1979-1980 and the summer of 1980. With due regard to the effects of the evaporation of precipitation particles and the absorption of gases, the relative importance of in-cloud scavenging and below-cloud scavenging, and the coll...

In the fall of 1999, two types of impact sprinklers were evaluated to determine the distribution of precipitation under normal operating conditions. The sprinkler types included a traditional round-patterned design (Rain Bird Maxi-Bird) and a recently developed sprinkler delivering water in a square pattern, called Square Shooter. The squarepatterned sprinkler was more precise in delivering a u...

into the jail hospital, suffering from difficulty of breathing. This had come on rather suddenly during the preceding night; for a week or more previously there had been one of those breaks in the rains, when the atmosphere becomes sultry. During the night of the 15th, a heavy fall of rain had occurred, which had suddenly reduced the temperature, while at the same time the air was laden with mo...

The exploration of wireless alternatives to Broadband access has continued to be very important to service providers. The Line-of-Sight (LOS) Free Space Laser (FSL) and 60-GHz radios are two promising wireless alternatives since they fall in the FCC license –free spectrum and thereby mitigate the tremendous expense of spectrum acquisition. However, the FSL solution is very limited as a carrier ...

Increased Cloud Condensation Nuclei (CCN) load due to anthropogenic activity might lead to non-precipitating clouds because the cloud drops become smaller (for a constant liquid water content) and, therefore, less efficient in rain formation (aerosol indirect effect). Adding giant CCN (GCCN) into such a cloud can initiate precipitation (namely, 5 drizzle) and, therefore, might counteract the ae...

Spatial contagiousness of canopy dynamics-the tendency of canopy disturbances to occur nearby existing canopy openings due to an elevated risk of tree fall around gaps-has been demonstrated in many temperate-zone forests, but only inferentially for tropical forests. Hypothesized mechanisms increasing the risk of tree fall around tropical forest gaps are (1) increased tree exposure to wind aroun...

Wet deposition is an important mechanism for removing air pollutants from the atmosphere. The total PCDD/Fs-WHO2005-TEQ wet 2018–2020 was investigated Beijing and Tianjin City in this study. In addition, gas-particle partitioning of deposition, concentrations rain, PM2.5-bound content, PM2.5 concentration were also studied City, respectively. Between 2018 to 2020, as a whole, average seasonal v...