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US-Blo: Blodgett Forest

Tower_team:
PI: Allen Goldstein [email protected] - University of California, Berkeley
AncContact: Silvano Fares [email protected] - Entecra
Lat, Long: 38.8953, -120.6328
Elevation(m): 1315
Network Affiliations: AmeriFlux
Vegetation IGBP: ENF (Evergreen Needleleaf Forests: Lands dominated by woody vegetation with a percent cover >60% and height exceeding 2 meters. Almost all trees remain green all year. Canopy is never without green foliage.)
Climate Koeppen: Csa (Mediterranean: mild with dry, hot summer)
Mean Annual Temp (°C): 11.09
Mean Annual Precip. (mm): 1226
Flux Species Measured: CO2
Years Data Collected: 1997 - 2006
Years Data Available:1997 - 2007   DOIs to use for Citation of Data
Description:
The flux tower site at Blodgett Forest is on a 1200 ha parcel of land owned by Sierra Pacific Industries in the Sierra Nevada range near Georgetown, California. ...
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URL: http://www.cnr.berkeley.edu/~ahg/tgbl/group.html
Research Topics:
1) Carbon Balance; 2) Ozone deposition; 3) Influence of forest management practices and climate on ozone deposition and carbon balance; 4) Ecosystem modeling ...
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Acknowledgment: —
Site Photo More Site Images
Image Credit: Allen Goldstein
Copyright preference: Open use
Site Publication More Site Publications

US-Blo: Blodgett Forest

DOIs for this site and other citation information

Citations: For data, use the DOI citation. For site characterization, use the site publication. For funding, use acknowledgments.

DOIs to use for Citation of Data

  • AmeriFlux
  • Citation: Allen Goldstein (2019), AmeriFlux US-Blo Blodgett Forest, Ver. 4-5, AmeriFlux AMP, (Dataset). https://doi.org/10.17190/AMF/1246032
  • Link: https://doi.org/10.17190/AMF/1246032

Publication(s) to use for citations of site characterization

    —

Acknowledgements

    —

Resources

US-Blo: Blodgett Forest

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US-Blo: Blodgett Forest

MODIS NDVI

The time series shows the 16-day Normalized Difference Vegetation Index (NDVI) average from the MOD13Q1 data product.
Use the slider below the time series to zoom in and out.

Includes all pixels that have acceptable quality

To view / download these data and other MOD13Q1 products for this site, visit MODIS/Terra Vegetation Indices.

For other related products, visit MODIS/VIIRS Fixed Sites Subsets Tool.

Citation:

ORNL DAAC. 2018. MODIS and VIIRS Land Products Fixed Sites Subsetting and Visualization Tool. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1567

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.

MODIS NDVI subsetted data is not yet available for this site.

For a complete list of AmeriFlux sites, visit ORNL DAAC's MODIS/VIIRS Fixed Sites Subsets Tool.

US-Blo: Blodgett Forest

Year Publication
2021 Chu, H., Luo, X., Ouyang, Z., Chan, W. S., Dengel, S., Biraud, S. C., Torn, M. S., Metzger, S., Kumar, J., Arain, M. A., Arkebauer, T. J., Baldocchi, D., Bernacchi, C., Billesbach, D., Black, T. A., Blanken, P. D., Bohrer, G., Bracho, R., Brown, S., Brunsell, N. A., Chen, J., Chen, X., Clark, K., Desai, A. R., Duman, T., Durden, D., Fares, S., Forbrich, I., Gamon, J. A., Gough, C. M., Griffis, T., Helbig, M., Hollinger, D., Humphreys, E., Ikawa, H., Iwata, H., Ju, Y., Knowles, J. F., Knox, S. H., Kobayashi, H., Kolb, T., Law, B., Lee, X., Litvak, M., Liu, H., Munger, J. W., Noormets, A., Novick, K., Oberbauer, S. F., Oechel, W., Oikawa, P., Papuga, S. A., Pendall, E., Prajapati, P., Prueger, J., Quinton, W. L., Richardson, A. D., Russell, E. S., Scott, R. L., Starr, G., Staebler, R., Stoy, P. C., Stuart-Haëntjens, E., Sonnentag, O., Sullivan, R. C., Suyker, A., Ueyama, M., Vargas, R., Wood, J. D., Zona, D. (2021) Representativeness Of Eddy-Covariance Flux Footprints For Areas Surrounding Ameriflux Sites, Agricultural And Forest Meteorology, 301-302, 108350.
2019 Novick, K. A., Konings, A. G., Gentine, P. (2019) Beyond Soil Water Potential: An Expanded View On Isohydricity Including Land–Atmosphere Interactions And Phenology, Plant, Cell & Environment, 42(6), 1802-1815.
2019 Zhang, Q., Ficklin, D. L., Manzoni, S., Wang, L., Way, D., Phillips, R. P., Novick, K. A. (2019) Response Of Ecosystem Intrinsic Water Use Efficiency And Gross Primary Productivity To Rising Vapor Pressure Deficit, Environmental Research Letters, 14(7), 074023.
2016 Novick, K. A., Ficklin, D. L., Stoy, P. C., Williams, C. A., Bohrer, G., Oishi, A., Papuga, S. A., Blanken, P. D., Noormets, A., Sulman, B. N., Scott, R. L., Wang, L., Phillips, R. P. (2016) The Increasing Importance Of Atmospheric Demand For Ecosystem Water And Carbon Fluxes, Nature Climate Change, 6(11), 1023-1027.
2013 Keenan, T. F., Hollinger, D. Y., Bohrer, G., Dragoni, D., Munger, J. W., Schmid, H. P., Richardson, A. D. (2013) Increase In Forest Water-Use Efficiency As Atmospheric Carbon Dioxide Concentrations Rise, Nature, 499(7458), 324-327.
2019 Sullivan, R. C., Kotamarthi, V. R., Feng, Y. (2019) Recovering Evapotranspiration Trends From Biased CMIP5 Simulations And Sensitivity To Changing Climate Over North America, Journal Of Hydrometeorology, 20(8), 1619-1633.
2019 Sullivan, R. C., Cook, D. R., Ghate, V. P., Kotamarthi, V. R., Feng, Y. (2019) Improved Spatiotemporal Representativeness And Bias Reduction Of Satellite-Based Evapotranspiration Retrievals Via Use Of In Situ Meteorology And Constrained Canopy Surface Resistance, Journal Of Geophysical Research: Biogeosciences, 124(2), 342-352.
2018 Baldocchi, D., Penuelas, J. (2018) The Physics And Ecology Of Mining Carbon Dioxide From The Atmosphere By Ecosystems, Global Change Biology, .
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.
2010 Fares, S., McKay, M., Holzinger, R., Goldstein, A. H. (2010) Ozone Fluxes In A Pinus Ponderosa Ecosystem Are Dominated By Non-Stomatal Processes: Evidence From Long-Term Continuous Measurements, Agricultural And Forest Meteorology, 150(3), 420-431.
2013 Fares, S., Vargas, R., Detto, M., Goldstein, A. H., Karlik, J., Paoletti, E., Vitale, M. (2013) Tropospheric Ozone Reduces Carbon Assimilation In Trees: Estimates From Analysis Of Continuous Flux Measurements, Global Change Biology, 19(8), 2427-2443.
2017 Hicks Pries, C. E.; Castanha, C.; Porras, R. C.; Torn, M. S. (2017) The Whole-Soil Carbon Flux In Response To Warming, Science, 355(6332), 1420-1423.
2005 Cleary, P. A., Murphy, J. G., Day, P. J. Wooldridge, D. A., Millet, D. B., McKay, M., Goldstein, A. H., Cohen, R. C. (2005) Observations Of Total Alkyl Nitrates Within The Sacramento Urban Plume, Atmospheric Chemistry And Physics Discussions, 5(4), 4801-4843.
2000 Bauer, M. R., Hultman, N. E., Panek, J. A., Goldstein, A. H. (2000) Ozone Deposition To A Ponderosa Pine Plantation In The Sierra Nevada Mountains (CA): A Comparison Of Two Different Climatic Years, Journal Of Geophysical Research: Atmospheres, 105(D17), 22123-22136.
2001 Miller, L. G., Kalin, R. M., McCauley, S. E., Hamilton, J. T., Harper, D. B., Millet, D. B., Oremland, R. S., Goldstein, A. H. (2001) Large Carbon Isotope Fractionation Associated With Oxidation Of Methyl Halides By Methylotrophic Bacteria, Proceedings Of The National Academy Of Sciences, 98(10), 5833-5837.
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.
2003 Schade, G. W., Goldstein, A. H. (2003) Increase Of Monoterpene Emissions From A Pine Plantation As A Result Of Mechanical Disturbances, Geophysical Research Letters, 30(7), n/a-n/a.
2002 Dreyfus, G. B., Schade, G. W., Goldstein, A. H. (2002) Observational Constraints On The Contribution Of Isoprene Oxidation To Ozone Production On The Western Slope Of The Sierra Nevada, California, Journal Of Geophysical Research, 107(D19), n/a-n/a.
2000 Goldstein, A. H., Schade, G. W. (2000) Quantifying Biogenic And Anthropogenic Contributions To Acetone Mixing Ratios In A Rural Environment, Atmospheric Environment, 34(29-30), 4997-5006.
2004 Goldstein, A. H., McKay, M., Kurpius, M. R., Schade, G. W., Lee, A., Holzinger, R., Rasmussen, R. A. (2004) Forest Thinning Experiment Confirms Ozone Deposition To Forest Canopy Is Dominated By Reaction With Biogenic VOCs, Geophysical Research Letters, 31(22), n/a-n/a.
2005 Lee, A., Schade, G. W., Holzinger, R., Goldstein, A. H. (2005) A Comparison Of New Measurements Of Total Monoterpene Flux With Improved Measurements Of Speciated Monoterpene Flux, Atmospheric Chemistry And Physics, 5(2), 505-513.
2001 Xu, M., DeBiase, T. A., Qi, Y., Goldstein, A., Liu, Z. (2001) Ecosystem Respiration In A Young Ponderosa Pine Plantation In The Sierra Nevada Mountains, California, Tree Physiology, 21(5), 309-318.
2003 Spaulding, R. S., Schade, G. W., Goldstein, A. H., Charles, M. J. (2003) Characterization Of Secondary Atmospheric Photooxidation Products: Evidence For Biogenic And Anthropogenic Sources, Journal Of Geophysical Research: Atmospheres, 108(D8), n/a-n/a.
2000 Goldstein, A., Hultman, N., Fracheboud, J., Bauer, M., Panek, J., Xu, M., Qi, Y., Guenther, A., Baugh, W. (2000) Effects Of Climate Variability On The Carbon Dioxide, Water, And Sensible Heat Fluxes Above A Ponderosa Pine Plantation In The Sierra Nevada (CA), Agricultural And Forest Meteorology, 101(2-3), 113-129.
2002 Kurpius, M., McKay, M., Goldstein, A. (2002) Annual Ozone Deposition To A Sierra Nevada Ponderosa Pine Plantation, Atmospheric Environment, 36(28), 4503-4515.
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.
2005 Tang, J., Qi, Y., Xu, M., Misson, L., Goldstein, A. H. (2005) Forest Thinning And Soil Respiration In A Ponderosa Pine Plantation In The Sierra Nevada, Tree Physiology, 25(1), 57-66.
2003 Reichstein, M., Rey, A., Freibauer, A., Tenhunen, J., Valentini, R., Banza, J., Casals, P., Cheng, Y., Grünzweig, J. M., Irvine, J., Joffre, R., Law, B. E., Loustau, D., Miglietta, F., Oechel, W., Ourcival, J., Pereira, J. S., Peressotti, A., Ponti, F., Qi, Y., Rambal, S., Rayment, M., Romanya, J., Rossi, F., Tedeschi, V., Tirone, G., Xu, M., Yakir, D. (2003) Modeling Temporal And Large-Scale Spatial Variability Of Soil Respiration From Soil Water Availability, Temperature And Vegetation Productivity Indices, Global Biogeochemical Cycles, 17(4), n/a-n/a.
2005 Tang, J., Misson, L., Gershenson, A., Cheng, W., Goldstein, A. H. (2005) Continuous Measurements Of Soil Respiration With And Without Roots In A Ponderosa Pine Plantation In The Sierra Nevada Mountains, Agricultural And Forest Meteorology, 132(3-4), 212-227.
2003 Gray, D. W., Lerdau, M. T., Goldstein, A. H. (2003) Influences Of Temperature History, Water Stress, And Needle Age On Methylbutenol Emissions, Ecology, 84(3), 765-776.
2004 McDowell, N. G., Bowling, D. R., Schauer, A., Irvine, J., Bond, B. J., Law, B. E., Ehleringer, J. R. (2004) Associations Between Carbon Isotope Ratios Of Ecosystem Respiration, Water Availability And Canopy Conductance, Global Change Biology, 10(10), 1767-1784.
2005 Holzinger, R., Lee, A., McKay, M., Goldstein, A. H. (2005) Seasonal Variability Of Monoterpene Emission Factors For A Ponderosa Pine Plantation In California, Atmospheric Chemistry And Physics Discussions, 5(5), 8791-8810.
2006 Schade, G. W., Goldstein, A. H. (2006) Seasonal Measurements Of Acetone And Methanol: Abundances And Implications For Atmospheric Budgets, Global Biogeochemical Cycles, 20(1), 1-10.
2001 Panek, J. A., Goldstein, A. H. (2001) Response Of Stomatal Conductance To Drought In Ponderosa Pine: Implications For Carbon And Ozone Uptake, Tree Physiology, 21(5), 337-344.
2002 Schade, G. W., Dreyfus, G. B., Goldstein, A. H. (2002) Atmospheric Methyl Tertiary Butyl Ether (MTBE) At A Rural Mountain Site In California, Journal Of Environment Quality, 31(4), 1088-1094.
1999 Baker, B., Guenther, A., Greenberg, J., Goldstein, A., Fall, R. (1999) Canopy Fluxes Of 2-Methyl-3-Buten-2-Ol Over A Ponderosa Pine Forest By Relaxed Eddy Accumulation: Field Data And Model Comparison, Journal Of Geophysical Research: Atmospheres, 104(D21), 26107-26114.
2004 Misson, L., Panek, J. A., Goldstein, A. H. (2004) A Comparison Of Three Approaches To Modeling Leaf Gas Exchange In Annually Drought-Stressed Ponderosa Pine Forests, Tree Physiology, 24(5), 529-541.
2000 Schade, G. W., Goldstein, A. H., Gray, D. W., Lerdau, M. T. (2000) Canopy And Leaf Level 2-Methyl-3-Buten-2-Ol Fluxes From A Ponderosa Pine Plantation, Atmospheric Environment, 34(21), 3535-3544.
2005 Fisher, J. B., DeBiase, T. A., Qi, Y., Xu, M., Goldstein, A. H. (2005) Evapotranspiration Models Compared On A Sierra Nevada Forest Ecosystem, Environmental Modelling & Software, 20(6), 783-796.
2006 Misson, L., Gershenson, A., Tang, J., McKay, M., Cheng, W., Goldstein, A. (2006) Influences Of Canopy Photosynthesis And Summer Rain Pulses On Root Dynamics And Soil Respiration In A Young Ponderosa Pine Forest, Tree Physiology, 26(7), 833-844.
2005 Gray, D. W., Goldstein, A. H., Lerdau, M. T. (2005) The Influence Of Light Environment On Photosynthesis And Basal Methylbutenol Emission From Pinus Ponderosa, Plant, Cell And Environment, 28(12), 1463-1474.
2006 Lunden, M. M., Black, D. R., McKay, M., Revzan, K. L., Goldstein, A. H., Brown, N. J. (2006) Characteristics Of Fine Particle Growth Events Observed Above A Forested Ecosystem In The Sierra Nevada Mountains Of California, Aerosol Science And Technology, 40(5), 373-388.
2005 Holzinger, R., Lee, A., Paw, K. T., Goldstein, A. H. (2005) Observations Of Oxidation Products Above A Forest Imply Biogenic Emissions Of Very Reactive Compounds, Atmospheric Chemistry And Physics, 5(1), 67-75.
1999 Lamanna, M. S., Goldstein, A. H. (1999) In Situ Measurements Of C2 -C10 Volatile Organic Compounds Above A Sierra Nevada Ponderosa Pine Plantation, Journal Of Geophysical Research: Atmospheres, 104(D17), 21247-21262.
2003 Kurpius, M. R., Goldstein, A. H. (2003) Gas-Phase Chemistry Dominates O3 Loss To A Forest, Implying A Source Of Aerosols And Hydroxyl Radicals To The Atmosphere, Geophysical Research Letters, 30(7), n/a-n/a.
2003 Kurpius, M., Panek, J., Nikolov, N., McKay, M., Goldstein, A. (2003) Partitioning Of Water Flux In A Sierra Nevada Ponderosa Pine Plantation, Agricultural And Forest Meteorology, 117(3-4), 173-192.
2001 Schade, G. W., Goldstein, A. H. (2001) Fluxes Of Oxygenated Volatile Organic Compounds From A Ponderosa Pine Plantation, Journal Of Geophysical Research: Atmospheres, 106(D3), 3111-3123.
2005 Misson, L., Lunden, M., McKay, M., Goldstein, A. H. (2005) Atmospheric Aerosol Light Scattering And Surface Wetness Influence The Diurnal Pattern Of Net Ecosystem Exchange In A Semi-Arid Ponderosa Pine Plantation, Agricultural And Forest Meteorology, 129(1-2), 69-83.
2005 Misson, L., Tang, J., Xu, M., McKay, M., Goldstein, A. (2005) Influences Of Recovery From Clear-Cut, Climate Variability, And Thinning On The Carbon Balance Of A Young Ponderosa Pine Plantation, Agricultural And Forest Meteorology, 130(3-4), 207-222.
2003 Wilson, K. B., Baldocchi, D., Falge, E., Aubinet, M., Berbigier, P., Bernhofer, C., Dolman, H., Field, C., Goldstein, A., Granier, A., Hollinger, D., Katul, G., Law, B. E., Meyers, T., Moncrieff, J., Monson, R., Tenhunen, J., Valentini, R., Verma, S., Wofsy, S. (2003) Diurnal Centroid Of Ecosystem Energy And Carbon Fluxes At FLUXNET Sites, Journal Of Geophysical Research: Atmospheres, 108(D21), n/a-n/a.
2002 Wilson, K. B., Baldocchi, D. D., Aubinet, M., Berbigier, P., Bernhofer, C., Dolman, H., Falge, E., Field, C., Goldstein, A., Granier, A., Grelle, A., Halldor, T., Hollinger, D., Katul, G., Law, B. E., Lindroth, A., Meyers, T., Moncrieff, J., Monson, R., Oechel, W., Tenhunen, J., Valentini, R., Verma, S., Vesala, T., Wofsy, S. (2002) Energy Partitioning Between Latent And Sensible Heat Flux During The Warm Season At FLUXNET Sites, Water Resources Research, 38(12), 1294-1305.
2002 Wilson, K., Goldstein, A., Falge, E., Aubinet, M., Baldocchi, D., Berbigier, P., Bernhofer, C., Ceulemans, R., Dolman, H., Field, C., Grelle, A., Ibrom, A., Law, B., Kowalski, A., Meyers, T., Moncrieff, J., Monson, R., Oechel, W., Tenhunen, J., Valentini, R., Verma, S. (2002) Energy Balance Closure At FLUXNET Sites, Agricultural And Forest Meteorology, 113(1-4), 223-243.
1999 Schade, G. W., Goldstein, A. H., Lamanna, M. S. (1999) Are Monoterpene Emissions Influenced By Humidity?, Geophysical Research Letters, 26(14), 2187-2190.
2006 Misson, L., Tu, K. P., Boniello, R. A., Goldstein, A. H. (2006) Seasonality Of Photosynthetic Parameters In A Multi-Specific And Vertically Complex Forest Ecosystem In The Sierra Nevada Of California, Tree Physiology, 26(6), 729-741.
2002 Panek, J. A., Kurpius, M. R., Goldstein, A. H. (2002) An evaluation of ozone exposure metrics for a seasonally drought-stressed ponderosa pine ecosystem, Environmental Pollution, 117(1), 93-100.
2001 Schade,G.W., Goldstein,A.H. (2001) Fluxes of oxygenated volatile organic compounds from a ponderosa pine plantatio, Journal of Geophysical Research-Atmospheres, 106(D3), 3111-3123.

US-Blo: Blodgett Forest

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-Blo: Blodgett Forest

Wind Roses

Click an image below to enlarge it, or use the navigation panel.
  • Image scale: 790m x 790m
  • 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
    A 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