Sentences with phrase «sea level pressure observations»

The station component is a blend of many national and international collections, with the largest contributor being surface and sea level pressure observations from the International Surface Database (ISD, Lott et al., 2008).

Observed Sea Level Pressure The atmospheric sea level pressure observation (hectopascals) 4.

Not exact matches

Here we use the SAM definition of Marshall (2003; 19) based on the difference in mean sea level pressure between 40ºS and 65ºS, which is entirely based on observations and fully independent of our inversion.

The models are gauged against the following observation - based datasets: Climate Prediction Center Merged Analysis of Precipitation (CMAP; Xie and Arkin, 1997) for precipitation (1980 — 1999), European Centre for Medium Range Weather Forecasts 40 - year reanalysis (ERA40; Uppala et al., 2005) for sea level pressure (1980 — 1999) and Climatic Research Unit (CRU; Jones et al., 1999) for surface temperature (1961 — 1990).

Arbetter, 4.7, Statistical A statistical model using regional observations of sea ice area and global NCEP air temperature, sea level pressure, and freezing degree day estimates continues the trend of projecting below - average summer sea ice conditions for the Arctic.

The observations assimilated in ERA - 20C include surface pressures and mean sea level pressures from ISPDv3.2.6 and ICOADSv2.5.1, and surface marine winds from ICOADSv2.5.1.

The H5ftotxt is outputting the Observed Pressure, you are correct that the NCEP Type will tell you if this is Sea Level Pressure (ship observations) or Surface Pressure (station observations).

As there are numerous techniques for determining sea level pressures from atmospheric observations, all having limitations, we also compared the SLP fields generated in the above way for general consistency with those generated using an independent method.

The observations can be very comprehensive (satellite, in situ, multiple variables) or relatively sparse (say, sea level pressure only), and the models themselves are quite varied.