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US-Ho1: Howland Forest (main tower)

Tower_team:
PI: David Hollinger David.Hollinger@unh.edu - USDA Forest Service
Lat, Long: 45.2041, -68.7402
Elevation(m): 60
Network Affiliations: AmeriFlux
Vegetation IGBP: ENF (Evergreen Needleleaf Forests)
Climate Koeppen: Dfb (Warm Summer Continental: significant precipitation in all seasons )
Mean Annual Temp (°C): 5.27
Mean Annual Precip. (mm): 1070
Flux Species Measured: CO2
Years Data Collected: AmeriFlux: 1996 - Present
Description:
Closed conifer forest, minimal disturbance. References: Fernandez et al. (1993), Canadian Journal of Soil Science 73 317-328. Hollinger et al. (1999), ...
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Research Topics:
Carbon balance * Influence of environmental variables on C-exchange * Soil processes * Isotopic fractionation * Scaling to the region CO2, H2O, sensible ...
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Acknowledgment:
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US-Ho1: Howland Forest (main tower)

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Derived Quantities

  • LAI (cm2/g)
  • Canopy Height (m)
  • Photosynthesis
  • GPP
  • Latent Heat Exchange
  • Net Ecosystem Exchange
  • PPFD (Visible Light)
  • Precipitation (mm)
  • Ecosystem Respiration
  • Solar Radiation (Rg)
  • Rn (Net Radiation) W/m2
  • Air Temp (°C)
  • Vapor Pressure Deficit
  • Veg Properties
  • Plant Functional Type
  • Disturbance History

  • Instruments, Rel to Ref Pt

  • Elevation (m)
  • r, Θ (m, rad)

  • Soils Template

  • Soil Texture
  • Bulk Density (g/cm3)
  • Soil Carbon Stock and/or Density (tons/cm)
  • Approximate Area: 672.99 m2

    US-Ho1: Howland Forest (main tower)

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    US-Ho1: Howland Forest (main tower)

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    US-Ho1: Howland Forest (main tower)

    MODIS NDVI

    Normalized Difference Vegetation Index image for this site.

    For time series, data download and other MODIS products for this site, visit MODIS cutouts.

    Citation

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    Citation:

    ORNL DAAC. 2008. MODIS Collection 5 Fixed Sites Subsetting and Visualization Tool. ORNL DAAC, Oak Ridge, Tennessee, USA. http://dx.doi.org/10.3334/ORNLDAAC/1251

    Read more on how to cite these MODIS images. 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-Ho1: Howland Forest (main tower)

    Year Publication
    2015 Dennis Baldocchi, Cove Sturtevant (2015) Does day and night sampling reduce spurious correlation between canopy photosynthesis and ecosystem respiration?, Agricultural and Forest Meteorology, 207, 117-126.
    2006 Richardson, A. D., Hollinger, D. Y., Burba, G. G., Davis, K. J., Flanagan, L. B., Katul, G. G., William Munger, J., Ricciuto, D. M., Stoy, P. C., Suyker, A. E., Verma, S. B., Wofsy, S. C. (2006) A Multi-Site Analysis Of Random Error In Tower-Based Measurements Of Carbon And Energy Fluxes, Agricultural And Forest Meteorology, 136(1-2), 1-18.
    2002 Davidson, E., Savage, K., Bolstad, P., Clark, D., Curtis, P., Ellsworth, D., Hanson, P., Law, B., Luo, Y., Pregitzer, K., Randolph, J., Zak, D. (2002) Belowground Carbon Allocation In Forests Estimated From Litterfall And IRGA-Based Soil Respiration Measurements, Agricultural And Forest Meteorology, 113(1-4), 39-51.
    2002 Falge, E., Baldocchi, D., Tenhunen, J., Aubinet, M., Bakwin, P., Berbigier, P., Bernhofer, C., Burba, G., Clement, R., Davis, K. J., Elbers, J. A., Goldstein, A. H., Grelle, A., Granier, A., Guðmundsson, J., Hollinger, D., Kowalski, A. S., Katul, G., Law, B. E., Malhi, Y., Meyers, T., Monson, R. K., Munger, J., Oechel, W., Paw U, K. T., Pilegaard, K., Rannik, Ü., Rebmann, C., Suyker, A., Valentini, R., Wilson, K., Wofsy, S. (2002) Seasonality Of Ecosystem Respiration And Gross Primary Production As Derived From FLUXNET Measurements, Agricultural And Forest Meteorology, 113(1-4), 53-74.
    2005 Arain, M. A., Restrepo-Coupe, N. (2005) Net Ecosystem Production In A Temperate Pine Plantation In Southeastern Canada, Agricultural And Forest Meteorology, 128(3-4), 223-241.
    2005 Xiao, X., Zhang, Q., Hollinger, D., Aber, J., Moore, B. (2005) Modeling Gross Primary Production Of An Evergreen Needleleaf Forest Using Modis And Climate Data, Ecological Applications, 15(3), 954-969.
    2006 Davidson, E. A., Janssens, I. A., Luo, Y. (2006) On The Variability Of Respiration In Terrestrial Ecosystems: Moving Beyond Q10, Global Change Biology, 12(2), 154-164.
    2005 Sims, D. A., Rahman, A. F., Cordova, V. D., Baldocchi, D. D., Flanagan, L. B., Goldstein, A. H., Hollinger, D. Y., Misson, L., Monson, R. K., Schmid, H. P., Wofsy, S. C., Xu, L. (2005) Midday Values Of Gross CO2 Flux And Light Use Efficiency During Satellite Overpasses Can Be Used To Directly Estimate Eight-Day Mean Flux, Agricultural And Forest Meteorology, 131(1-2), 1-12.
    2004 Xiao, X., Hollinger, D., Aber, J., Goltz, M., Davidson, E. A., Zhang, Q., Moore, B. (2004) Satellite-Based Modeling Of Gross Primary Production In An Evergreen Needleleaf Forest, Remote Sensing Of Environment, 89(4), 519-534.
    2004 Hollinger, D. Y., Aber, J., Dail, B., Davidson, E. A., Goltz, S. M., Hughes, H., Leclerc, M. Y., Lee, J. T., Richardson, A. D., Rodrigues, C., Scott, N., Achuatavarier, D., Walsh, J. (2004) Spatial And Temporal Variability In Forest-Atmosphere CO2 Exchange, Global Change Biology, 10(10), 1689-1706.
    2004 Lai, C., Ehleringer, J. R., Tans, P., Wofsy, S. C., Urbanski, S. P., Hollinger, D. Y. (2004) Estimating Photosynthetic C-13 Discrimination In Terrestrial CO2 Exchange From Canopy To Regional Scales, Global Biogeochemical Cycles, 18(1), n/a-n/a.
    1993 Fernandez, I. J., Rustad, L. E., Lawrence, G. B. (1993) Estimating Total Soil Mass, Nutrient Content, And Trace Metals In Soils Under A Low Elevation Spruce-Fir Forest, Canadian Journal Of Soil Science, 73(3), 317-328.
    1999 Hollinger, D. Y., Goltz, S. M., Davidson, E. A., Lee, J. T., Tu, K., Valentine, H. T. (1999) Seasonal Patterns And Environmental Control Of Carbon Dioxide And Water Vapour Exchange In An Ecotonal Boreal Forest, Global Change Biology, 5(8), 891-902.
    2005 Hibbard, K. A., Law, B. E., Reichstein, M., Sulzman, J. (2005) An Analysis Of Soil Respiration Across Northern Hemisphere Temperate Ecosystems, Biogeochemistry, 73(1), 29-70.
    2006 Davidson, E. A., Richardson, A. D., Savage, K. E., Hollinger, D. Y. (2006) A Distinct Seasonal Pattern Of The Ratio Of Soil Respiration To Total Ecosystem Respiration In A Spruce-Dominated Forest, Global Change Biology, 12(2), 230-239.
    2002 Davidson, E., Savage, K., Verchot, L., Navarro, R. (2002) Minimizing Artifacts And Biases In Chamber-Based Measurements Of Soil Respiration, Agricultural And Forest Meteorology, 113(1-4), 21-37.
    2005 Richardson, A. D., Hollinger, D. Y. (2005) Statistical Modeling Of Ecosystem Respiration Using Eddy Covariance Data: Maximum Likelihood Parameter Estimation, And Monte Carlo Simulation Of Model And Parameter Uncertainty, Applied To Three Simple Models, Agricultural And Forest Meteorology, 131(3-4), 191-208.
    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.
    2002 Thornton, P., Law, B., Gholz, H. L., Clark, K. L., Falge, E., Ellsworth, D., Goldstein, A., Monson, R., Hollinger, D., Falk, M., Chen, J., Sparks, J. (2002) Modeling And Measuring The Effects Of Disturbance History And Climate On Carbon And Water Budgets In Evergreen Needleleaf Forests, Agricultural And Forest Meteorology, 113(1-4), 185-222.
    2016 Zscheischler, J., Fatichi, S., Wolf, S., Blanken, P., Bohrer, G., Clark, K., Desai, A., Hollinger, D., Keenan, T., Novick, K.A., Seneviratne, S.I. (2016) Short-term favorable weather conditions are an important control of interannual variability in carbon and water fluxes, Journal of Geophysical Research - Biogeosciences, 121(8), 2186-2198.
    2016 Wolf, S., Keenan, T.F., Fisher, J.B., Baldocchi, D.D., Desai, A.R., Richardson, A.D., Scott, R.L., Law, B.E., Litvak, M.E., Brunsell, N.A., Peters, W., van der Laan-Luijkx, I.T. (2016) Warm spring reduced carbon cycle impact of the 2012 US summer drought, Proceedings of the National Academy of Sciences, 113(21), 5880-5885.
    2015 Bohrer, G., Steiner, A.L., Hollinger, D.Y., Suyker, A., Phillips, R.P., Nadelhoffer, K.J. (2015) Variations in the influence of diffuse light on gross primary productivity in temperate ecosystems, Agricultural & Forest Meteorology, 201, 98-110.

    US-Ho1: Howland Forest (main tower)

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