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:- Not all links are active. Some files are preliminary and may be replaced without notice.
- Some files may contain "bad" data when, for example, instruments were malfunctioning. Although we have tried to edit out these data, use the files at your own risk.
- Please do not refer to these data in any publication, etc., without contacting us first.
Simon Radford, CCAT Deputy Project Manager
Summary since 2004 December
| Quantity | Quartiles
| Cumul. Distrib.
| Variations
| |||||||
|---|---|---|---|---|---|---|---|---|---|---|
Min.
| 25%
| Med.
| 75%
| Max.
| Diurnal
| Seasonal
| ||||
| Temperature | -32.9 | -4.6 | -1.5 | 1.5 | 12.0 | |||||
| Pressure | 526 | 554 | 555 | 556 | 568 | |||||
| Relative Humidity |
11 | 21 | 42 | |||||||
| Absolute Humidity |
0.5 | 0.9 | 1.9 | 7.4 | ||||||
| Wind Speed (peak)† |
4.8 | 7.8 | 11.4 | 121.7 | ||||||
| Wind Speed (ave.)† |
2.2 | 3.8 | 6.0 | 29.5 | ||||||
† Wind speed peak and average in 15 min intervals.
Events
- 2012 October 28 2:24 UT
- Clock 6 min ahead; reset to UT
- 2011 November 5 16:27 UT
- Clock 14 min ahead; reset to UT
- 2011 August
- Incongruous anemometer readings indicate damaged instrument.
- 2010 April 23 19:23 UT
- Clock 12 min behind; reset to UT
- 2009 March 19 15:00 UT
- Clock 40 min behind; reset to UT
- 2006 May 5
- Anemometer repaired.
- 2006 May 3 17:45 UT
- Clock 14 min behind; reset to UT
- 2005 October 9
- Starting on or around 2005 October 9, the anemometer readings appear sporadically incongruous. On 2006 April 19, a visitor discovered the anemometer had sustained severe damage.
- 2004 December 11
- Unit 3 installed, clock set to UT - 4 h.
Yearly and monthly summaries
2012
| Month | Time Series | Distributions | Data | Diurnal |
|---|---|---|---|---|
| 2012 | ||||
| October | txt.zip | |||
| September | txt.zip | |||
| August | txt.zip | |||
| July | txt.zip | |||
| June | txt.zip | |||
| May | txt.zip | |||
| April | txt.zip | |||
| March | txt.zip | |||
| February | txt.zip | |||
| January | txt.zip |
2011
| Month | Time Series | Distributions | Data | Diurnal |
|---|---|---|---|---|
| 2011 | ||||
| December | txt.zip | |||
| November | txt.zip | |||
| October | txt.zip | |||
| September | txt.zip | |||
| July | txt.zip | |||
| June | txt.zip | |||
| May | txt.zip | |||
| April | txt.zip | |||
| March | txt.zip | |||
| February | txt.zip | |||
| January | txt.zip |
2010
| Month | Time Series | Distributions | Data | Diurnal |
|---|---|---|---|---|
| 2010 | ||||
| December | txt.zip | |||
| November | txt.zip | |||
| October | txt.zip | |||
| September | txt.zip | |||
| August | txt.zip | |||
| July | txt.zip | |||
| June | txt.zip | |||
| May | txt.zip | |||
| April | txt.zip | |||
| March | txt.zip | |||
| February | txt.zip | |||
| January | txt.zip |
2009
| Month | Time Series | Distributions | Data | Diurnal |
|---|---|---|---|---|
| 2009 | ||||
| December | txt.zip | |||
| November | txt.zip | |||
| October | txt.zip | |||
| September | txt.zip | |||
| August | txt.zip | |||
| July | txt.zip | |||
| June | txt.zip | |||
| May | txt.zip | |||
| April | txt.zip | |||
| March | txt.zip | |||
| February | txt.zip | |||
| January | txt.zip |
2008
| Month | Time Series | Distributions | Data | Diurnal |
|---|---|---|---|---|
| 2008 | ||||
| December | txt.zip | |||
| November | txt.zip | |||
| October | txt.zip | |||
| September | txt.zip | |||
| August | txt.zip | |||
| July | txt.zip | |||
| June | txt.zip | |||
| May | txt.zip | |||
| April | txt.zip | |||
| March | txt.zip | |||
| February | txt.zip | |||
| January | txt.zip |
2007
| Month | Time Series | Distributions | Data | Diurnal |
|---|---|---|---|---|
| 2007 | ||||
| December | txt.zip | |||
| November | txt.zip | |||
| October | txt.zip | |||
| September | txt.zip | |||
| August | txt.zip | |||
| July | txt.zip | |||
| June | txt.zip | |||
| May | txt.zip | |||
| April | txt.zip | |||
| March | txt.zip | |||
| February | txt.zip | |||
| January | txt.zip |
2006
| Month | Time Series | Distributions | Data | Diurnal |
|---|---|---|---|---|
| 2006 | ||||
| December | txt.zip | |||
| November | txt.zip | |||
| October | txt.zip | |||
| September | txt.zip | |||
| August | txt.zip | |||
| July | txt.zip | |||
| June | txt.zip | |||
| May | txt.zip | |||
| April | txt.zip | |||
| March | txt.zip | |||
| February | txt.zip | |||
| January | txt.zip |
2005
| Month | Time Series | Distributions | Data | Diurnal |
|---|---|---|---|---|
| 2005 | ||||
| December | txt.zip | |||
| November | txt.zip | |||
| October | txt.zip | |||
| September | txt.zip | |||
| August | txt.zip | |||
| July | txt.zip | |||
| June | txt.zip | |||
| May | txt.zip | |||
| April | txt.zip | |||
| March | txt.zip | |||
| February | txt.zip | |||
| January | txt.zip |
2004
| Month | Time Series | Distributions | Data | Diurnal |
|---|---|---|---|---|
| 2004 | pdf, | |||
| December | txt.zip |
Data format: compressed ascii text,
details
Graphics format: acrobat (pdf)