Harvard Forest, Massachusetts, United States [HFM]
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Description
Harvard Forest is a 1200 hectares, aggrading, temperate, 50 to 70 year old, mixed deciduous forest with moderately hilly terrain. The physical plant includes Shaler Hall, a brick building with offices, research laboratories, seminar room, the Harvard Forest archives, a library of 22,000 volumes, and the Fisher Museum with panoramic displays. In addition, it has dormitory accomodations for twenty-five persons and dining room and kitchen facilities, photographic suite and darkroom, a graphics and mapping room, a projection and film analysis room for video microscopy, and micro computers. Also, there are two greenhouses, the Director's house (David Foster), and four residences for research staff and their families. Also, there's the woods crew of three men, the forest manager and their back-hoe, bulldozer, tractor, crawler, dump truck, flat bed truck, pick up and van, wood working shop, and a sawmill.
GMD Projects at Harvard Forest, Massachusetts
Carbon Cycle Airborne Flasks
| Parameter | Formula | First Sample Date | Most Recent Sample Date |
|---|---|---|---|
| Carbon Dioxide | CO2 | 1999-11-11 | 2007-11-18 |
| Methane | CH4 | 1999-11-11 | 2007-11-18 |
| Carbon Monoxide | CO | 1999-11-11 | 2007-11-18 |
| Molecular Hydrogen | H2 | 1999-11-11 | 2007-11-18 |
| Nitrous Oxide | N2O | 2000-03-31 | 2007-11-18 |
| Sulfur Hexafluoride | SF6 | 2000-03-31 | 2007-11-18 |
| Carbon-13/Carbon-12 in Carbon Dioxide | d13C (CO2) | 2003-04-13 | 2003-08-21 |
| Oxygen-18/Oxygen-16 in Carbon Dioxide | d18O (CO2) | 2003-04-13 | 2003-06-06 |
| HFC-134a | CH2FCF3 | 2005-02-06 | 2007-11-18 |
| HCFC-22 | CHF2Cl | 2005-02-06 | 2007-11-18 |
| CFC-12 | CCl2F2 | 2005-02-06 | 2007-11-18 |
| Methyl Chloride | CH3Cl | 2005-02-06 | 2007-11-18 |
| CFC-114 and CFC-114a (combined) | CFC-114 and CFC-114a (combined) | 2005-02-06 | 2007-11-18 |
| HCFC-142b | CH3CF2Cl | 2005-02-06 | 2007-11-18 |
| Halon-1211 | CBrClF2 | 2005-02-06 | 2007-11-18 |
| methyl bromide | CH3Br | 2005-02-06 | 2007-11-18 |
| CFC-11 (ion 101) | CCl3F (ion 101) | 2005-02-06 | 2007-11-18 |
| CFC-11 (ion 103) | CCl3F (ion 103) | 2005-02-06 | 2007-11-18 |
| HCFC-141b | CH3CCl2F | 2005-02-06 | 2007-11-18 |
| methyl iodide | CH3I | 2005-02-06 | 2007-11-18 |
| CFC-113 | CCl2FCClF2 | 2005-02-06 | 2007-11-18 |
| dichloromethane | CH2Cl2 | 2005-02-06 | 2007-11-18 |
| chloroform | CHCl3 | 2005-02-06 | 2007-11-18 |
| methyl chloroform (ion 97) | CH3CCl3 | 2005-02-06 | 2007-11-18 |
| methyl chloroform (ion 99) | CH3CCl3 | 2005-02-06 | 2007-11-18 |
| carbon tetrachloride | CCl4 | 2005-02-06 | 2007-11-18 |
| dibromomethane | CH2Br2 | 2005-02-06 | 2007-11-18 |
| tetrachloroethylene | C2Cl4 | 2005-02-06 | 2007-11-18 |
| bromoform | CHBr3 | 2005-02-06 | 2007-11-18 |
| Benzene | C6H6 | 2005-02-06 | 2007-11-18 |
| HCFC-21 | CHCl2F | 2005-02-06 | 2007-11-18 |
| HFC-152a | CH3CHF2 | 2005-02-06 | 2007-11-18 |
| HCFC-124 | CHClFCF3 | 2005-02-06 | 2007-11-18 |
| toluene | C7H8 | 2005-07-02 | 2007-11-18 |
| carbonyl disulfide | CS2 | 2005-02-06 | 2006-02-16 |
| Sample Pressure | press | 2005-02-06 | 2007-11-18 |
| Carbon-14/Carbon in Carbon Dioxide | D14C (CO2) | 2004-02-11 | 2006-10-30 |
| propane | C3H8 | 2007-03-07 | 2007-06-27 |
| n-butane | n-C4H10 | 2007-03-07 | 2007-06-27 |
| i-pentane | i-C5H12 | 2007-03-07 | 2007-06-27 |
| n-pentane | n-C5H12 | 2007-03-07 | 2007-06-27 |
| wind speed | 2004-09-14 | 2004-09-15 | |
| wind direction | 2004-09-14 | 2004-09-15 | |
| ambient temperature | 1999-11-11 | 2007-11-18 | |
| ambient pressure | 1999-11-11 | 2007-11-18 | |
| relative humidity | 1999-11-11 | 2007-11-18 | |
| Halon 2402 | CBrF2CBrF2 | 2007-03-07 | 2007-06-27 |
| Halon 1301 | CF3Br | 2007-03-07 | 2007-06-27 |
| HFC-143a | CH3CF3 | 2007-03-07 | 2007-06-27 |
| HCFC-227ea | CF3CHFCF3 | 2007-03-30 | 2007-06-27 |
| HFC-365mfc | CH3CF2CH2CF3 | 2007-03-07 | 2007-06-27 |
| CFC-115 | CClF2CF3 | 2007-03-07 | 2007-06-27 |
| HFC-125 | CHF2CF3 | 2007-03-07 | 2007-06-27 |
| CFC-13 | CClF3 | 2007-03-07 | 2007-06-27 |
| Chloroethane | CH3CH2Cl | 2007-03-07 | 2007-06-27 |
| HFC-23 | CHF3 | 2007-03-07 | 2007-06-27 |
HATS Flask Sampling
For the HATS baseline measurements, a 30 meter tower has been instrumented to measure numerous atmospheric trace gases (H2, CO, CH4, CFCs 12,11,113, H1211, N2O, SF6, methyl chloroform, chloroform, perchloroethylene, trichloroethylene, carbon tetrachloride.), wind speed and direction, humidity, temperature at various points above, in, and below the canopy. Currently, we have one ongoing project, named FACTS, employing one of our custom built, four-channel gas chromatographs ( HATS Instrumentation).
HATS In Situ Observatory