Annual and seasonal correlations between temperature and both specific and relative humidity are presented based on radiosonde station data over the tropical Pacific Ocean and North America. Results are presented for the surface and the 850-, 700-, and 500-hPa levels. The correlations between anomalies of temperature and relative humidity are generally negative, and those between temperature an...

Based on the atmospheric temperature and dew point difference series of mandatory levels in arid region northwest China, we calculated specific humidity stations at 200, 300, 400, 500, 700, 850 hPa analyzed spatial temporal distribution. The radiosonde is compared with two sets reanalysis data (ERA-interim from European Centre for Medium Range Weather Forecasts Modern Era Retrospective Analysis...

Abstract Four meteorological components (geopotential height Z , air temperature T dew point Td, and relative humidity RH) collected from ERA-5 ERA-Interim were compared with the observations of nine radiosonde stations different climatic changes, at isobaric levels (850, 700, 500, 200 hPa) during period 2000–2017, in order to assess accuracy aforementioned reanalysis datasets. The results show...

The horizontal and vertical structure of unusually warm and dry spells (WDS) over the central parts of South America during the winter and post-winter months (JJAS) are studied. During WDS the mean temperature and humidity anomalies over central Brazil are about +4.1C and −13.2%, respectively. The mean duration of WDS is 11 days and their mean frequency is less than one per year during the mont...

There are frequent and intensive periods of heavy rain in the arid areas southern Xinjiang. This study uses a typical rainstorm process South Xinjiang Basin to investigate weather, physical mechanisms, mesoscale characteristics, income expenditure characteristics water vapor sources, analyzing them using observation data from regional automatic stations, ERA5 reanalysis data, multi-source satel...

heavy precipitation plays a significant role in arid and semi-arid regions of iran. in order to understand the effect of blocking high system on rainfalls in northwest iran during 25 - 28 october 2008, meteorological conditions including pressure, wind fields and temperature at multiple levels of the atmosphere were analyzed. sea level pressure, the 1000-500 hpa thickness, perceptible water, re...

Abstract The troposphere is one of the atmospheric layers where most weather phenomena occur. Temperature variations in troposphere, especially at 500 hPa, a typical level middle are significant indicators future changes. Numerical prediction effective for temperature prediction, but its computational complexity hinders timely response. This paper proposes novel approach framework physics-infor...