in this study variations of field data such as temperature, salinity and density in and across the transects of chahbahar bay were analyzed using ctd data acquired between winter 2006 and spring 2007 (winter monsoon).the results showed that thermocline layer intensify in mouth of bay between 2m and 6m with 7.81 ?c decrease before the gonou hurricane occured (mid-may 2007). below thermocline lay...

The effect of aircraft contrails on surface climate was assessed by first determining the density of jet traffic across a ten state area of the Upper Midwest, and comparing that distribution with observed changes of various meteorological parameters over the past 50 years, both within and outside of the principal contrail areas. Commercial jet traffic density was found to be greatest in 1979 al...

The effect of aircraft contrails on surface climate was assessed by first determining the density of jet traffic across a ten state area of the Upper Midwest, and comparing that distribution with observed changes of various meteorological parameters over the past 50 years, both within and outside of the principal contrail areas. Commercial jet traffic density was found to be greatest in 1979 al...

the aim of this research is to analyze the performance of 8 drought’s index in isfahan, kerman and yazd province and choose the best index. for this purpose, used monthly and yearly rainfall data in the period of 30 years (1985-2014) and also used 8 drought indexes in 20 meteorological stations of central iran which the accuracy of each index in determining drought is examined. also zoning in a...

Meteorological drought monitoring is important for drought early warning and disaster prevention. Regional meteorological drought can be evaluated and analyzed with standardized precipitation index (SPI). Two main processing schemes are frequently adopted: (1) mean of all SPI calculated from precipitation at individual stations (SPI-mean); and (2) SPI calculated from all-station averaged precip...

The Global Network of Isotopes in Precipitation consisted of 153 active stations in 2001. As can be seen in the map above, active stations are classified as " IAEA " or " National Network " (NN). The " IAEA " stations are those where national institutes are performing the monthly sampling, compiling the meteorological parameters and shipping samples to the IAEA for isotope analyses. The " Natio...

reduced rainfall in many parts of the world have prompted scientists to try to manipulate, in different ways, to the nature, causing precipitation from accumulated water in the atmosphere. atmospheric ionization is a new method for producing precipitation and has attracted much attention. in this regard, in recent years, in some regions of the world, in different ways, the relation between mete...

Jointly owned by the University of Oklahoma (OU) and Oklahoma State University (OSU), the Oklahoma Mesonet has provided valuable meteorological measurements since the early 1990’s. With over 110 stations located across the state of Oklahoma, the Mesonet is a state-ofthe-art network that measures several hydrological, agricultural, and meteorological variables (Brock et al. 1995; McPherson et al...

Urban canopy models (UCMs) are being used as urban-climate prediction tools for different applications including outdoor thermal comfort and building energy consumption. To take advantage of their low computational cost, UCMs are often forced offline without being coupled to mesoscale atmospheric simulations, which requires access to meteorological information above the urban canopy layer. This...