A new advanced microwave humidity sounder FY-3D MWHS2 radiance has been assimilated under the clear-sky conditions by implementing its data assimilation interface. The case of tropical storm Ampil in 2018 is selected to address effectiveness new-built module initialization and forecast typhoons. Apart from experiment assimilating both Global Telecommunications System (GTS) data, an with only GT...

The authors investigate the atmospheric response to projected Arctic sea ice loss at the end of the twentyfirst century using an atmospheric general circulation model (GCM) coupled to a land surface model. The response was obtained from two 60-yr integrations: one with a repeating seasonal cycle of specified sea ice conditions for the late twentieth century (1980–99) and one with that of sea ic...

PURPOSE The objectives of this study were to describe the distribution of all runners' performances in the largest marathons worldwide and to determine which environmental parameters have the maximal impact. METHODS We analysed the results of six European (Paris, London, Berlin) and American (Boston, Chicago, New York) marathon races from 2001 to 2010 through 1,791,972 participants' performan...

Challenging Minisatellite Payload (CHAMP) radio occultation (RO) observations during a two-week period are assimilated into global analyses using the National Center for Environmental Prediction (NCEP) three-dimensional variational (3D-Var) system with a recently improved observation operator for assimilating GPS bending angle data. The NCEP 3D-Var system used in this research is suboptimal sin...

The TOVS Path-B data set provides atmospheric temperature and water vapor profiles as well as cloud properties over the globe, from 1987 to 1995. Their relatively high spectral resolution yields reliable cirrus properties, day and night. First, we present average cirrus properties and their seasonal and diurnal variations. A reanalysis which will extend the present data set back to 1979 and up ...

Long-term meteorological data for the Arctic are sparse. One of longest quasi-continuous temperature time series in High is extended Svalbard Airport series, providing daily from 1898 until present. Here, I derive an adjustment to historic observations on island Nordaustlandet, north-east Svalbard, order link these series. This includes Haudegen at Rijpfjorden during 1944/45 and a previously un...

Urbanisation leads to increased thermal stress in hot-humid climates due to increased surface and air temperatures and reduced wind speed. We examined the influence of urban morphology and sea breeze on the microclimate of Colombo, Sri Lanka. Air and surface temperatures, humidity and wind speed were measured at 1 rural and 5 urban sites during the warmest season. The urban sites differed in th...

The shape of the air flow in the interior is heavily influenced by the air distribution system and the way air enters and exits. By numerically simulating flow by computational fluid dynamics, one can determine the flow pattern and temperature distribution and, with the help of the results, provide an optimal design of the air conditioning system. In this study, a chamber was first constructed ...