hPa

Forecasts of pressure patterns at around 18,000 feet (500 hPa) for the December 19 and February 3 snowstorms.

Why was last year so snowy? Part II Jason Samenow 2010

Even Paltridge et al. 2009, which relied on the NCEP reanalysis data, recognized that “[i]t is accepted that radiosonde-derived humidity data must be treated with great caution, particularly at altitudes above the 500 hPa [hectopascal] pressure level.”

Archive 2010-03-01 EliRabett 2010

Even Paltridge et al. 2009, which relied on the NCEP reanalysis data, recognized that “[i]t is accepted that radiosonde-derived humidity data must be treated with great caution, particularly at altitudes above the 500 hPa [hectopascal] pressure level.”

Eli can retire: Part II - so much for Miskolczi EliRabett 2010

Preliminary analysis of the profiles suggests that trends in ozone concentrations as a function of altitude are most significant in the lower and middle stratosphere, at pressure altitudes of approximately 100 to 25 hectopascals (hPa).

Long-term change and variability in ozone levels in the Arctic 2009

The 500 hPa height and the 500/1000 hPa thickness anomaly fields were used as predictors in an MLR-based model.

Statistical downscaling approach and downscaling of AOGCM climate change projections 2009

Mean sea-level pressure (SLP) is generally lower (by up to about 1.5 hPa) over the central Arctic and northern North Atlantic in the ACIA baseline period compared to the 1961 – 1990 baseline period.

Simulation of observed arctic climate with the ACIA designated models 2009

# A closed, symmetric circulation at 850 hPa with horizontal extent of 25° latitude that persists for at least two weeks. ...

What's In A Name: The Key to Victory BikeSnobNYC 2009

The saturation pressure of water vapor at that temperature, marked by the yellow line, is ~20 hPa hectopascals.

It’s dew, dude! AYDIN 2008

But suppose that on a particular dry evening the vapor pressure happened to be ~10 hPa.

It’s dew, dude! AYDIN 2008

But suppose that on a particular dry evening the vapor pressure happened to be ~10 hPa.

Archive 2008-11-01 AYDIN 2008