Sentences with phrase «hpa height»

The success of numerical weather prediction at predicting say the 500 hpa height field on the time scale of the lifetime of a baroclinic wave (nominally 4 - 7 days) is a testimony to the credibility of these solutions

Here is a quote from Pielke Sr.: «First, as can be seen from Fig. 1, A and B, ignoring data after 1996, linear trends in globally averaged 1000 — 300 hPa thickness temperature and 300 hPa over 1979 to 1996 were not significant -LSB--- 0.045 °C / decade (P = 0.55) and — 2.59 m / decade (P = 0.33) for 1000 — 300 hPa thickness temperature and 300 hPa height, respectively].

Not exact matches

The PNA (left) and NAO (right) teleconnection patterns, shown as one - point correlation maps of 500 hPa geopotential heights for boreal winter (DJF) over 1958 to 2005.

The importance of stationary - eddy vertical motions at 850 hPa arises as vertical motions bring moisture from the boundary layer to a mean condensation height of about 850 hPa (Wills and Schneider 2015).

For example figure 7 is the 6 — 10 day outlook for 15 — 19 August, made on 9 August 2008, for 500 hPa geopotential height field (solid) and anomalies (dashed, DNS = departure from normal); earlier weather outlooks in August were similar.

This is particularly found in changes to the surface air temperature, sea level pressure (Fig. 3), and 500 - hPa geopotential height fields.

A drying of the atmosphere — that the researchers note — takes place in the subtropical subsidence zone (the 30 degrees latitude) but expands towards the 30 - 45 degrees latitude — Earth's Meditteranean climates, where their model suggests net cloud cover would actually decrease most (see dotted line in first image in this article, at top)-- most notably around 500 hPa (roughly translating to a height of around 5 kilometers of altitude in the troposphere) decreasing albedo and increasing solar heat absorption, therefore net climate warming.

I include in this week's blog the monthly 500 hPa geopotential heights (Figure 11) and the surface temperatures (Figure 12) forecast for June from the Climate Forecast System (CFS; the plots represent yesterday's four ensemble members).

«We examine the relationship between surface temperature variability and atmospheric circulation through comparison of the empirical modes of the satellite data sets with NCEP - NCAR reanalysis geopotential height anomalies at the 500 - hPa level.

The SLP fields used in this atlas are derived from the 12 - hourly (0Z and 12Z) 500 HPa and 1000 HPa geopotential heights generated by the NCEP Reanalysis project.

The first principal component is significantly correlated with the SAM index (the first principal component of sea - level - pressure or 500 - hPa geopotential heights for 20u S — 90u S), and the second principal component reflects the zonal wave - 3 pattern, which contributes to the Antarctic dipole pattern of sea - ice anomalies in the Ross Sea and Weddell Sea sectors.

Now, remembering that atmospheric pressure is directly related to temperature, and pressure decreases with height, warming a region will increase the height at which pressure falls to 500 hPa.