CCAT

Weather Data: Cerro Toco

Caveats

These data are results from site characterization measurements made by Cornell and Caltech with the authorization of CONICYT and in cooperation with the University of Chile and others. They are available for use by the CCAT project and other researchers, but please note:

Simon Radford, CCAT Deputy Project Manager


Sulphur mine: 2004 May to July

Quantity
Quartiles
Cumul. Distrib.
Variations
Min.
25%
Median
75%
Max.
Diurnal
Seasonal
Temperature [°C]   -11.2 -9.2 -7.1  
 
Pressure [mbar]   527.8 529.2 530.3  
Relative Humidity [%] 7 15 31
Absolute Humidity [g m-3]        
Wind Speed (peak)† [m s-1] 7.0 9.1 11.2  
Wind Speed (ave.)† [m s-1] 4.2 5.6 6.8  

† Wind speed peak and average in 15 min intervals.

Month Time Series Distributions Data Diurnal
2004 pdf pdf
July pdf pdf txt.zip pdf
June pdf pdf txt.zip pdf
May pdf pdf txt.zip pdf

Summit: 2002 March to July

The following data have two anomalies.

As a result, only the temperature, humidity, and wind speed distributions and the wind rose are reliable. The diurnal patterns are not reliable.

Month Time Series Distributions Data Diurnal
2002 pdf pdf
July pdf pdf txt.zip pdf
June pdf pdf txt.zip pdf
May pdf pdf txt.zip pdf
April pdf pdf txt.zip pdf
March pdf pdf txt.zip pdf

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