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US-Ha1: Harvard Forest EMS Tower (HFR1)

Tower_team:
PI: J. William Munger jwmunger@seas.harvard.edu - Harvard University
BADMContact: Tim Whitby whitbytg@seas.harvard.edu -
Lat, Long: 42.5378, -72.1715
Elevation(m): 340
Network Affiliations: AmeriFlux
Vegetation IGBP: DBF (Deciduous Broadleaf Forests)
Climate Koeppen: Dfb (Warm Summer Continental: significant precipitation in all seasons )
Mean Annual Temp (°C): 6.62
Mean Annual Precip. (mm): 1071
Flux Species Measured: CO2, H, H2O
Years Data Collected: AmeriFlux: 1991 - Present
Description:
The Harvard Forest tower is on land owned by Harvard University. The site is designated as an LTER site. Most of the surrounding area was cleared for agrigulture ...
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URL: http://atmos.seas.harvard.edu/lab/hf/index.html
Research Topics:
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Acknowledgment: Operation of the US-Ha1 site is supported by the AmeriFlux Management Project with funding by the U.S. Department of Energy’s Office of Science under Contract No. DE-AC02-05CH11231, and additionally is a part of the Harvard Forest LTER site supported by the National Science Foundation (DEB-1237491).
Site Photo More Site Images
Image Credit: Bill Munger, 06/06/2003
Copyright preference: As long as credit is given
Site Publication More Site Publications
Urbanski, S., Barford, C., Wofsy, S., Kucharik, C., Pyle, E., Budney, J., McKain, K., Fitzjarrald, D., Czikowsky, M.,, Munger, J. W. 2007. Factors Controlling CO2 Exchange On Timescales From Hourly To Decadal At Harvard Forest, Journal Of Geophysical Research, 112:G2, n/a-n/a.

US-Ha1: Harvard Forest EMS Tower (HFR1)

Instructions for DOIs for This Site

When using DOIs for this site, use the publications and acknowledgments listed below.

DOIs

Publications to use for Citations for this Site

Acknowledgements

  • Operation of the US-Ha1 site is supported by the AmeriFlux Management Project with funding by the U.S. Department of Energy’s Office of Science under Contract No. DE-AC02-05CH11231, and additionally is a part of the Harvard Forest LTER site supported by the National Science Foundation (DEB-1237491).

Resources

US-Ha1: Harvard Forest EMS Tower (HFR1)

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US-Ha1: Harvard Forest EMS Tower (HFR1)

MODIS NDVI

View timeseries and download data for 16-day Normalized Difference Vegetation Index (NDVI) for this site.

For other MODIS and related products for this site, visit MODIS/VIIRS Subsets.

Citation:

ORNL DAAC 2018. MODIS and VIIRS Land Products Global Subsetting and Visualization Tool. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1379

Read more on how to cite these MODIS products. Data come from NASA’s MODIS instruments installed on satellites Terra and Aqua, which scan the entire Earth’s surface every one to two days.

US-Ha1: Harvard Forest EMS Tower (HFR1)

Year Publication
2018 Chu, H., Baldocchi, D. D., Poindexter, C., Abraha, M., Desai, A. R., Bohrer, G., Arain, M. A., Griffis, T., Blanken, P. D., O'Halloran, T. L., Thomas, R. Q., Zhang, Q., Burns, S. P., Frank, J. M., Christian, D., Brown, S., Black, T. A., Gough, C. M., Law, B. E., Lee, X., Chen, J., Reed, D. E., Massman, W. J., Clark, K., Hatfield, J., Prueger, J., Bracho, R., Baker, J. M., Martin, T. A. (2018) Temporal Dynamics Of Aerodynamic Canopy Height Derived From Eddy Covariance Momentum Flux Data Across North American Flux Networks, Geophysical Research Letters, 45, 9275–9287.
2015 Yue, X., Unger, N., Keenan, T. F., Zhang, X., Vogel, C. S. (2015) Probing The Past 30-Year Phenology Trend Of Us Deciduous Forests, Biogeosciences, 12(15), 4693-4709.
2014 Belmecheri, S., Maxwell, R. S., Taylor, A. H., Davis, K. J., Freeman, K. H., Munger, W. J. (2014) Tree-Ring δ 13c Tracks Flux Tower Ecosystem Productivity Estimates In A Ne Temperate Forest, Environmental Research Letters, 9(7), 074011.
2018 Kim, J. H., Hwang, T., Yang, Y., Schaaf, C. L., Boose, E., Munger, J. W. (2018) Warming-Induced Earlier Greenup Leads To Reduced Stream Discharge In A Temperate Mixed Forest Catchment, Journal Of Geophysical Research: Biogeosciences, 123(6), 1960-1975.
2018 Zhang, Q., Phillips, R. P., Manzoni, S., Scott, R. L., Oishi, A. C., Finzi, A., Daly, E., Vargas, R., Novick, K. A. (2018) Changes In Photosynthesis And Soil Moisture Drive The Seasonal Soil Respiration-Temperature Hysteresis Relationship, Agricultural And Forest Meteorology, 259, 184-195.
2018 Helliker, B. R., Song, X., Goulden, M. L., Clark, K., Bolstad, P., Munger, J. W., Chen, J., Noormets, A., Hollinger, D., Wofsy, S., Martin, T., Baldocchi, D., Euskirchenn, E., Desai, A., Burns, S. P. (2018) Assessing The Interplay Between Canopy Energy Balance And Photosynthesis With Cellulose δ18o: Large-Scale Patterns And Independent Ground-Truthing, Oecologia, .
2018 Kim, J., Hwang, T., Schaaf, C. L., Kljun, N., Munger, J. W. (2018) Seasonal Variation Of Source Contributions To Eddy-Covariance Co 2 Measurements In A Mixed Hardwood-Conifer Forest, Agricultural And Forest Meteorology, 253-254, 71-83.
2018 Sihi, D, Davidson, E.A., Chen, M, Savage, K.E., Richardson, A.D., Keenan, T.F., Hollinger, D. Y. (2018) Merging a mechanistic enzymatic model of soil heterotrophic respiration into an ecosystem model in two AmeriFlux sites of northeastern USA, Agricultural and Forest Meteorology, 252, 155-166.
2018 Hayek, M. N., Wehr, R., Longo, M., Hutyra, L. R., Wiedemann, K., Munger, J. W., Bonal, D., Saleska, S. R., Fitzjarrald, D. R., Wofsy, S. C. (2018) A Novel Correction For Biases In Forest Eddy Covariance Carbon Balance, Agricultural And Forest Meteorology, 250-251, 90-101.
2017 Wehr, R., Commane, R., Munger, J. W., McManus, J. B., Nelson, D. D., Zahniser, M. S., Saleska, S. R., Wofsy, S. C. (2017) Dynamics Of Canopy Stomatal Conductance, Transpiration, And Evaporation In A Temperate Deciduous Forest, Validated By Carbonyl Sulfide Uptake, Biogeosciences, 14(2), 389-401.
2017 Porras, R. C., Hicks Pries, C. E., McFarlane, K. J., Hanson, P. J., Torn, M. S. (2017) Association With Pedogenic Iron And Aluminum: Effects On Soil Organic Carbon Storage And Stability In Four Temperate Forest Soils, Biogeochemistry, 133(3), 333-345.
2013 McFarlane, K. J., Torn, M. S., Hanson, P. J., Porras, R. C., Swanston, C. W., Callaham, M. A., Guilderson, T. P. (2013) Comparison Of Soil Organic Matter Dynamics At Five Temperate Deciduous Forests With Physical Fractionation And Radiocarbon Measurements, Biogeochemistry, 112(1-3), 457-476.
1998 Munger, J. W., Fan, S., Bakwin, P. S., Goulden, M. L., Goldstein, A. H., Colman, A. S., Wofsy, S. C. (1998) Regional Budgets For Nitrogen Oxides From Continental Sources: Variations Of Rates For Oxidation And Deposition With Season And Distance From Source Regions, Journal Of Geophysical Research: Atmospheres, 103(D7), 8355-8368.
1993 Wofsy, S. C., Goulden, M. L., Munger, J. W., Fan, S., Bakwin, P. S., Daube, B. C., Bassow, S. L., Bazzaz, F. A. (1993) Net Exchange Of CO2 In A Mid-Latitude Forest, Science, 260(5112), 1314-1317.
1996 Goulden, M. L., Munger, J. W., Fan, S., Daube, B. C., Wofsy, S. C. (1996) Exchange Of Carbon Dioxide By A Deciduous Forest: Response To Interannual Climate Variability, Science, 271(5255), 1576-1578.
2005 Staebler, R. M., Fitzjarrald, D. R. (2005) Measuring Canopy Structure And The Kinematics Of Subcanopy Flows In Two Forests, Journal Of Applied Meteorology, 44(8), 1161-1179.
2001 Barford, C. C., Wofsy, S. C., Goulden, M. L., Munger, J. W., Pyle, E. H., Urbanski, S. P., Hutyra, L., Saleska, S. R., Fitzjarrald, D., Moore, K. (2001) Factors Controlling Long- And Short-Term Sequestration Of Atmospheric CO2 In A Mid-Latitude Forest, Science, 294(5547), 1688-1691.
2004 Staebler, R. M., Fitzjarrald, D. R. (2004) Observing Subcanopy CO2 Advection, Agricultural And Forest Meteorology, 122(3-4), 139-156.
2012 Keenan, T. F., Davidson, E., Moffat, A. M., Munger, W., Richardson, A. D. (2012) Using Model-Data Fusion To Interpret Past Trends, And Quantify Uncertainties In Future Projections, Of Terrestrial Ecosystem Carbon Cycling, Global Change Biology, 18(8), 2555-2569.
2007 Urbanski, S., Barford, C., Wofsy, S., Kucharik, C., Pyle, E., Budney, J., McKain, K., Fitzjarrald, D., Czikowsky, M.,, Munger, J. W. (2007) Factors Controlling CO2 Exchange On Timescales From Hourly To Decadal At Harvard Forest, Journal Of Geophysical Research, 112(G2), n/a-n/a.
2002 Curtis, P. S., Hanson, P. J., Bolstad, P., Barford, C., Randolph, J., Schmid, H., Wilson, K. B. (2002) Biometric And Eddy-Covariance Based Estimates Of Annual Carbon Storage In Five Eastern North American Deciduous Forests, Agricultural And Forest Meteorology, 113(1-4), 3-19.
2006 Liu, W. H., Bryant, D. M., Hutyra, L. R., Saleska, S. R., Hammond-Pyle, E., Curran, D., Wofsy, S. C. (2006) Woody Debris Contribution To The Carbon Budget Of Selectively Logged And Maturing Mid-Latitude Forests, Oecologia, 148(1), 108-117.
1999 Potosnak, M. J., Wofsy, S. C., Denning, A. S., Conway, T. J., Munger, J. W., Barnes, D. H. (1999) Influence Of Biotic Exchange And Combustion Sources On Atmospheric CO2 Concentrations In New England From Observations At A Forest Flux Tower, Journal Of Geophysical Research: Atmospheres, 104(D8), 9561-9569.
1997 Bassow, S. L., Bazzaz, F. A. (1997) Intra- And Inter-Specific Variation In Canopy Photosynthesis In A Mixed Deciduous Forest, Oecologia, 109(4), 507-515.
1998 Goldstein, A. H., Goulden, M. L., Munger, J. W., Wofsy, S. C., Geron, C. D. (1998) Seasonal Course Of Isoprene Emissions From A Midlatitude Deciduous Forest, Journal Of Geophysical Research: Atmospheres, 103(D23), 31045-31056.
2001 Freedman, J. M., Fitzjarrald, D. R., Moore, K. E., Sakai, R. K. (2001) Boundary Layer Clouds And Vegetation–Atmosphere Feedbacks, Journal Of Climate, 14(2), 180-197.
1998 Bassow, S. L., Bazzaz, F. A. (1998) How Environmental Conditions Affect Canopy Leaf-Level Photosynthesis In Four Deciduous Tree Species, Ecology, 79(8), 2660-2675.
1996 Goulden, M. L., Munger, J. W., Fan, S., Daube, B. C., Wofsy, S. C. (1996) Measurements Of Carbon Sequestration By Long-Term Eddy Covariance: Methods And A Critical Evaluation Of Accuracy, Global Change Biology, 2(3), 169-182.
2001 Savage, K. E., Davidson, E. A. (2001) Interannual Variation Of Soil Respiration In Two New England Forests, Global Biogeochemical Cycles, 15(2), 337-350.
1996 Moore, K. E., Fitzjarrald, D. R., Sakai, R. K., Goulden, M. L., Munger, J. W., Wofsy, S. C. (1996) Seasonal Variation In Radiative And Turbulent Exchange At A Deciduous Forest In Central Massachusetts, Journal Of Applied Meteorology, 35(1), 122-134.
2010 Phillips, S. C., Varner, R. K., Frolking, S., Munger, J. W., Bubier, J. L., Wofsy, S. C., Crill, P. M. (2010) Interannual, Seasonal, And Diel Variation In Soil Respiration Relative To Ecosystem Respiration At A Wetland To Upland Slope At Harvard Forest, Journal Of Geophysical Research: Biogeosciences, 115(G2), n/a-n/a.
2016 Wehr, R., Munger, J. W., McManus, J. B., Nelson, D. D., Zahniser, M. S., Davidson, E. A., Wofsy, S. C., Saleska, S. R. (2016) Seasonality of temperate forest photosynthesis and daytime respiration, Nature, 534, 680-683.
2015 Commane, R.C., Meredith, L. K., Baker, I. T., Berry, J. A., Munger, J. W, Montzka, S. A, Templer, P. H., Juice, S. M., Zahniser, M. S., Wofsy, S. C. (2015) Seasonal fluxes of carbonyl sulfide in a midlatitude forest, PNAS, 1-7.

US-Ha1: Harvard Forest EMS Tower (HFR1)

BADM for This Site

Access the Biological, Ancillary, Disturbance and Metadata (BADM) information and data for this site.

BADM contain information for many uses, such as characterizing a site’s vegetation and soil, describing disturbance history, and defining instrumentation for flux processing. They complement the flux/met data.

* Online updates are shown on the Overview tab real time. However, downloaded BADM files will not reflect those updates until they have been reviewed for QA/QC.

US-Ha1: Harvard Forest EMS Tower (HFR1)

Wind Roses

Click an image below to enlarge it, or use the navigation panel.
  • Image scale: 748m x 748m
  • Data Collected:
  • Wind roses use variables ‘WS’ and ‘WD’.
    Download Data Download Wind Rose as Image File (PNG)

    Wind Speed (m/s)

  • Graph Type
  • Wind Speed Scale
  • Wind Direction Scale (%)
  • Show Satellite Image
  • Show Wind Rose
  • Annual Average
    About Ameriflux Wind Roses
    Wind Rose Explanation
    wind rose gives a succinct view of how wind speed and direction are typically distributed at a particular location. Presented in a circular format, a wind rose shows the frequency and intensity of winds blowing from particular directions. The length of each “spoke” around the circle indicates the amount of time (frequency) that the wind blows from a particular direction. Colors along the spokes indicate categories of wind speed (intensity). Each concentric circle represents a different frequency, emanating from zero at the center to increasing frequencies at the outer circles
    Utility
    This information can be useful to gain insight into regions surrounding a flux tower that contribute to the measured fluxes, and how those regions change in dependence of the time of day and season. The wind roses presented here are for four periods of the year, and in 16 cardinal directions. Graphics are available for all sites in the AmeriFlux network based on reported wind measurements at each site.
    Data from each site can be downloaded by clicking the ‘download’ button.
    Hover the cursor over a wind rose to obtain directions, speeds and intensities.
    Note that wind roses are not equivalent to flux footprints. Specifically, the term flux footprint describes an upwind area “seen” by the instruments measuring vertical turbulent fluxes, such that heat, water, gas and momentum transport generated in this area is registered by the instruments. Wind roses, on the other hand, identify only the direction and speed of wind.
    Where do these data come from?
    The wind roses are based on observed hourly data from the sites registered with the AmeriFlux Network.
    Parameters for AmeriFlux Wind Roses
    To use wind roses for a single AmeriFlux site, the following parameters may be most useful:
    • Wind Speed Scale: Per Site
    • Wind Direction Scale (%): Per Site
    To compare wind roses from more than one single AmeriFlux site, the following parameters may be most useful:
    • Wind Speed Scale: Non-Linear
    • Wind Direction Scale (%): AmeriFlux
    Mar - Jun; 6am - 6pm
    Mar - Jun; 6pm - 6am
    Jun - Sep; 6am - 6pm
    Jun - Sep; 6pm - 6am
    Sep - Dec; 6am - 6pm
    Sep - Dec; 6pm - 6am
    Dec - Mar; 6am - 6pm
    Dec - Mar; 6pm - 6am