Niwot Ridge, Colorado, United States [NWR]
Location
- Country: United States
- Latitude: 40.0531° North
- Longitude: 105.5864° West
- Elevation: 3523.00 masl
- Time Zone: Local Time + 7.0 hour(s) = UTC
Data
Cooperating Agencies
Niwot Ridge is located approximately 35 km west of Boulder, Colorado, with the entire study site lying above 3000 m elevation. There is a cirque glacier (Arikaree Glacier), extensive alpine tundra, a variety of glacial landforms, glacial lakes and moraines, cirques and talus slopes, patterned ground, and permafrost. The research area is bounded on the west by the Continental Divide, with runoff on the two sides being destined for the Colorado and Mississippi Rivers. The alpine study area is reached by an unimproved road from the Mountain Research Station (2895 m) which leads to within 2 km of the main tundra research site, the Saddle (3528 m). Niwot Ridge, including the main alpine study site, is part of the Roosevelt National Forest and has been designated a Biosphere Reserve (United Nations Educational, Scientific and Cultural Organization, UNESCO) and an Experimental Ecology Reserve (USDA Forest Service).
The Niwot Ridge web site is at http://culter.colorado.edu/NWT/
GMD Projects at Niwot Ridge, Colorado
Parameter | Formula | First Sample Date | Status |
---|---|---|---|
Carbon Dioxide | CO2 | 1967-05-18 | Ongoing |
Carbon Dioxide | CO2 | 2005-09-16 | Ongoing |
Methane | CH4 | 2005-09-16 | Ongoing |
Methane | CH4 | 1983-05-11 | Ongoing |
Carbon Monoxide | CO | 1988-12-13 | Ongoing |
Carbon Monoxide | CO | 2005-09-16 | Ongoing |
Molecular Hydrogen | H2 | 1988-12-27 | Ongoing |
Molecular Hydrogen | H2 | 2005-09-16 | Ongoing |
Nitrous Oxide | N2O | 1997-04-22 | Ongoing |
Nitrous Oxide | N2O | 2005-09-16 | Ongoing |
Sulfur Hexafluoride | SF6 | 2005-09-16 | Ongoing |
Sulfur Hexafluoride | SF6 | 2014-12-23 | Ongoing |
Sulfur Hexafluoride | SF6 | 1997-04-22 | Ongoing |
Carbon-13/Carbon-12 in Carbon Dioxide | d13C (CO2) | 2005-09-16 | Ongoing |
Carbon-13/Carbon-12 in Carbon Dioxide | d13C (CO2) | 1990-01-09 | Ongoing |
Oxygen-18/Oxygen-16 in Carbon Dioxide | d18O (CO2) | 2005-09-16 | Ongoing |
Oxygen-18/Oxygen-16 in Carbon Dioxide | d18O (CO2) | 1990-01-09 | Ongoing |
Carbon-13/Carbon-12 in Methane | d13C (CH4) | 1998-01-06 | Ongoing |
Carbon-14/Carbon in Carbon Dioxide | D14C (CO2) | 2003-05-27 | Ongoing |
D/H in Methane | dD (CH4) | 2005-05-24 | Terminated - 2010-01-26 |
HFC-134a | CH2FCF3 | 2012-04-10 | Ongoing |
HCFC-22 | CHF2Cl | 2012-04-10 | Ongoing |
CFC-12 | CCl2F2 | 2012-04-10 | Ongoing |
Methyl Chloride | CH3Cl | 2015-02-24 | Ongoing |
Methyl Chloride | CH3Cl | 2005-12-06 | Terminated - 2014-11-11 |
Methyl Chloride | CH3Cl | 2012-04-10 | Ongoing |
CFC-114 and CFC-114a (combined) | CFC-114 and CFC-114a (combined) | 2012-04-10 | Ongoing |
HCFC-142b | CH3CF2Cl | 2012-04-10 | Ongoing |
Halon-1211 | CBrClF2 | 2012-04-10 | Ongoing |
methyl bromide | CH3Br | 2012-04-10 | Ongoing |
CFC-11 (ion 101) | CCl3F (ion 101) | 2012-04-10 | Ongoing |
CFC-11 (ion 103) | CCl3F (ion 103) | 2014-12-23 | Ongoing |
HCFC-141b | CH3CCl2F | 2012-04-10 | Ongoing |
methyl iodide | CH3I | 2012-04-10 | Ongoing |
CFC-113 | CCl2FCClF2 | 2012-04-10 | Ongoing |
dichloromethane | CH2Cl2 | 2012-04-10 | Ongoing |
chloroform | CHCl3 | 2012-04-10 | Ongoing |
methyl chloroform (ion 97) | CH3CCl3 | 2012-04-10 | Ongoing |
carbon tetrachloride | CCl4 | 2012-04-10 | Ongoing |
dibromomethane | CH2Br2 | 2012-04-10 | Ongoing |
tetrachloroethylene | C2Cl4 | 2012-04-10 | Ongoing |
bromoform | CHBr3 | 2012-04-10 | Ongoing |
Benzene | C6H6 | 2015-02-24 | Ongoing |
Benzene | C6H6 | 2010-01-19 | Terminated - 2014-11-11 |
Benzene | C6H6 | 2012-04-10 | Ongoing |
carbonyl sulfide | COS | 2012-04-10 | Ongoing |
HCFC-21 | CHCl2F | 2015-06-15 | Ongoing |
HFC-152a | CH3CHF2 | 2012-04-10 | Ongoing |
HCFC-124 | CHClFCF3 | 2012-04-10 | Ongoing |
toluene | C7H8 | 2015-02-24 | Ongoing |
toluene | C7H8 | 2010-01-19 | Terminated - 2014-11-11 |
toluene | C7H8 | 2014-12-23 | Ongoing |
carbonyl disulfide | CS2 | 2012-04-10 | Ongoing |
ethane | C2H6 | 2015-02-24 | Ongoing |
ethane | C2H6 | 2005-12-06 | Terminated - 2014-11-11 |
ethane | C2H6 | 2014-12-23 | Ongoing |
ethene | C2H4 | 2015-02-24 | Ongoing |
ethene | C2H4 | 2014-12-23 | Ongoing |
ethene | C2H4 | 2005-12-06 | Terminated - 2014-11-11 |
propane | C3H8 | 2005-12-06 | Terminated - 2014-11-11 |
propane | C3H8 | 2012-04-10 | Ongoing |
propane | C3H8 | 2015-02-24 | Ongoing |
propene | C3H6 | 2014-12-23 | Ongoing |
propene | C3H6 | 2005-12-06 | Terminated - 2014-11-11 |
propene | C3H6 | 2015-02-24 | Ongoing |
i-butane | i-C4H10 | 2015-02-24 | Ongoing |
i-butane | i-C4H10 | 2005-12-06 | Terminated - 2014-11-11 |
i-butane | i-C4H10 | 2014-12-23 | Ongoing |
n-butane | n-C4H10 | 2012-04-10 | Ongoing |
n-butane | n-C4H10 | 2015-02-24 | Ongoing |
n-butane | n-C4H10 | 2005-12-06 | Terminated - 2014-11-11 |
i-pentane | i-C5H12 | 2012-04-10 | Ongoing |
i-pentane | i-C5H12 | 2015-02-24 | Ongoing |
i-pentane | i-C5H12 | 2005-12-06 | Terminated - 2014-11-11 |
n-pentane | n-C5H12 | 2012-04-10 | Ongoing |
n-pentane | n-C5H12 | 2005-12-06 | Terminated - 2014-11-11 |
n-pentane | n-C5H12 | 2015-02-24 | Ongoing |
n-hexane | n-C6H14 | 2005-12-06 | Terminated - 2014-11-11 |
n-hexane | n-C6H14 | 2015-02-24 | Ongoing |
n-hexane | n-C6H14 | 2014-12-23 | Ongoing |
Wind Speed | ws | 1992-07-21 | Ongoing |
Wind Direction | wd | 1992-07-21 | Ongoing |
Temperature | temp | 2006-12-14 | Ongoing |
Temperature | temp | 2004-08-31 | Terminated - 2004-09-14 |
Ambient Pressure | press | 2006-12-14 | Ongoing |
Relative Humidity | rh | 2006-12-14 | Ongoing |
isoprene | C5H8 | 2015-02-24 | Ongoing |
isoprene | C5H8 | 2010-01-19 | Terminated - 2014-11-11 |
Halon 1301 | CF3Br | 2012-04-10 | Ongoing |
Halon 2402 | CBrF2CBrF2 | 2012-04-10 | Ongoing |
HFC-143a | CH3CF3 | 2012-04-10 | Ongoing |
HFC-227ea | CF3CHFCF3 | 2012-04-10 | Ongoing |
HFC-365mfc | CH3CF2CH2CF3 | 2012-04-10 | Ongoing |
CFC-115 | CClF2CF3 | 2012-04-10 | Ongoing |
HFC-125 | CHF2CF3 | 2012-04-10 | Ongoing |
CFC-13 | CClF3 | 2012-04-10 | Ongoing |
Chloroethane | CH3CH2Cl | 2012-04-10 | Terminated - 2014-07-23 |
HFC-23 | CHF3 | 2012-04-10 | Ongoing |
Perfluoropropane | C3F8 | 2012-04-10 | Ongoing |
Acetylene | C2H2 | 2012-04-10 | Ongoing |
Acetylene | C2H2 | 2015-02-24 | Ongoing |
Acetylene | C2H2 | 2014-11-11 | Terminated - 2014-11-11 |
HFC-32 | CH2F2 | 2012-04-10 | Ongoing |
HFC-134 | CHF2CHF2 | 2012-04-10 | Ongoing |
CH2BrCl | CH2BrCl | 2014-12-23 | Ongoing |
tetrafluoromethane | CF4 | 2014-12-23 | Ongoing |
hexafluoroethane | CF3CF3 | 2014-12-23 | Ongoing |
nitrogen trifluoride | NF3 | 2015-05-19 | Ongoing |
sulfuryl fluoride | SO2F2 | 2015-05-19 | Ongoing |
HFC-236fa | CF3CH2CF3 | 2014-12-23 | Ongoing |
HCFC-133a | CH2ClCF3 | 2014-12-23 | Ongoing |
CFC-112 | CCl3CClF2 | 2014-12-23 | Ongoing |
C2HCl3 | C2HCl3 | 2014-12-23 | Ongoing |
HATS Flask Sampling
Parameter | Formula | First Sample Date | Status |
---|---|---|---|
HFC-134a | CH2FCF3 | 1994-12-13 | Ongoing |
HCFC-22 | CHF2Cl | 1991-12-24 | Ongoing |
Methyl Chloride | CH3Cl | 1995-02-14 | Ongoing |
HCFC-142b | CH3CF2Cl | 1992-02-18 | Ongoing |
Halon-1211 | CBrClF2 | 1991-12-24 | Ongoing |
methyl bromide | CH3Br | 1993-09-28 | Ongoing |
HCFC-141b | CH3CCl2F | 1992-12-15 | Ongoing |
CFC-113 | CCl2FCClF2 | 1991-12-24 | Ongoing |
dichloromethane | CH2Cl2 | 1995-04-04 | Ongoing |
tetrachloroethylene | C2Cl4 | 1993-12-07 | Ongoing |
carbonyl sulfide | COS | 2000-03-14 | Ongoing |
HFC-152a | CH3CHF2 | 2000-08-01 | Ongoing |
Halon 2402 | CBrF2CBrF2 | 1995-02-14 | Ongoing |
HFC-227ea | CF3CHFCF3 | 2011-06-07 | Ongoing |
HFC-365mfc | CH3CF2CH2CF3 | 2009-08-04 | Ongoing |
Methyl Chloroform | CH3CCl3 | 1991-12-24 | Ongoing |
HATS In Situ Observatory
Parameter | Formula | First Sample Date | Status |
---|---|---|---|
Nitrous Oxide | N2O | 2001-01-08 | Ongoing |
Sulfur Hexafluoride | SF6 | 2001-01-08 | Ongoing |
HCFC-22 | CHF2Cl | 2000-12-09 | Ongoing |
CFC-12 | CCl2F2 | 2001-01-17 | Ongoing |
Methyl Chloride | CH3Cl | 2001-01-24 | Ongoing |
HCFC-142b | CH3CF2Cl | 2001-06-15 | Ongoing |
Halon-1211 | CBrClF2 | 2001-05-02 | Ongoing |
CFC-113 | CCl2FCClF2 | 2001-05-05 | Ongoing |
carbon tetrachloride | CCl4 | 2001-05-01 | Ongoing |
Methyl Chloroform | CH3CCl3 | 2001-05-01 | Ongoing |
CFC-11 | CCl3F | 2001-05-01 | Ongoing |
Surface Ozone
Parameter | Formula | First Sample Date | Status |
---|---|---|---|
Ozone | O3 | 1990-07-26 | Ongoing |
Trajectories
NEUBrew UV and Ozone
Trace gases from GGGRN Flasks