CA-Obs: Saskatchewan - Western Boreal, Mature Black Spruce
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| Tower_team: | |
| PI: | Alan Barr alan.barr@usask.ca - University of Saskatchewan |
| PI: | Andy Black andrew.black@ubc.ca - University of British Columbia |
| PI: | Warren Helgason warren.helgason@usask.ca - University of Saskatchewan |
| DataManager: | Bruce Johnson bruce.johnson@usask.ca - University of Saskatchewan |
| Technician: | Cody David cody.david@usask.ca - University of Saskatchewan |
| Lat, Long: | 53.9872, -105.1178 |
| Elevation(m): | 628.94 |
| Network Affiliations: | AmeriFlux, Fluxnet-Canada, Phenocam |
| 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: | Dfc (Subarctic: severe winter, no dry season, cool summer) |
| Mean Annual Temp (°C): | 0.79 |
| Mean Annual Precip. (mm): | 405.6 |
| Flux Species Measured: | CO2 |
| Years Data Collected: | 1999 - Present |
| Years Data Available: | AmeriFlux BASE 1997 - 2010 Data Citation |
| Data Use Policy: | AmeriFlux CC-BY-4.0 Policy1 |
| Description: | 53.98717° N, 105.11779° W, elavation of 628.94 m, BOREAS 1994, 1996, BERMS climate measurements began Dec. 1996 and flux measurements in Apr. 1999 |
| URL: | https://water.usask.ca/berms/ |
| Research Topics: | — |
| Acknowledgment: | — |
Site Tasks
- This site’s data can also be used under the more restrictive AmeriFlux Legacy Policy.
The AmeriFlux Legacy Policy must be followed if this site’s data are combined with data from sites that require the AmeriFlux Legacy Policy.
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CA-Obs: Saskatchewan - Western Boreal, Mature Black Spruce
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Use the information below for citation of this site. See the Data Policy page for more details.
DOI(s) for citing CA-Obs data
Data Use Policy: AmeriFlux CC-BY-4.0 License
This site’s data can also be used under the more restrictive AmeriFlux Legacy Policy.
The AmeriFlux Legacy Policy must be followed if CA-Obs data are combined with data from sites that require the AmeriFlux Legacy Policy.
- AmeriFlux BASE: https://doi.org/10.17190/AMF/1375198
Citation: T. Andrew Black (2016), AmeriFlux BASE CA-Obs Saskatchewan - Western Boreal, Mature Black Spruce, Ver. 1-1, AmeriFlux AMP, (Dataset). https://doi.org/10.17190/AMF/1375198
To cite BADM when downloaded on their own, use the publications below for citing site characterization. When using BADM that are downloaded with AmeriFlux BASE and AmeriFlux FLUXNET products, use the DOI citation for the associated data product.
Publication(s) for citing site characterization
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Acknowledgments
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CA-Obs: Saskatchewan - Western Boreal, Mature Black Spruce
- Overview
- Windroses
- Data Citation
- Data Use Log
- Image Gallery
- Remote Sensing Data
- MODIS
- PhenoCam
- GeoNEX
- Publications
- BADM
This page displays the list of downloads of data for the site CA-Obs.
Note: Results are the number of downloads to distinct data users. The Download Count column indicates the number of times the data user downloaded the data. The Version column refers to the version of the data product for the site that was downloaded by the data user.
| Date | Name | Data Product | Version | Intended Use | Intended Use Description | Download Count |
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CA-Obs: Saskatchewan - Western Boreal, Mature Black Spruce
- Overview
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- Data Citation
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- Image Gallery
- Remote Sensing Data
- MODIS
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CA-Obs: Saskatchewan - Western Boreal, Mature Black Spruce
- Overview
- Windroses
- Data Citation
- Data Use Log
- Image Gallery
- Remote Sensing Data
- MODIS
- PhenoCam
- GeoNEX
- Publications
- BADM
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. Terrestrial Ecology Subsetting & Visualization Services (TESViS) Fixed Sites Subsets. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1567
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.
PhenoCam Images and Derived Time Series Data
PhenoCams are high-resolution digital cameras that take repeated images of studied ecosystems and provide quantitative information about the canopy phenology. The PhenoCam Network coordinates the camera installation and data reporting/analyses across sites in the Americas, providing automated, near-surface remote sensing of canopy phenology across a range of ecosystems and climate zones. Use of PhenoCam images / data should follow the PhenoCam Data Use Policy .
PhenoCam sites for CA-Obs:
Use the links below to explore camera images and interactive timeseries for these sites.
Citation:
B. Seyednasrollah, A. M. Young, K. Hufkens, T. Milliman, M. A. Friedl, S. Frolking, and A. D. Richardson. Tracking vegetation phenology across diverse biomes using version 2.0 of the phenocam dataset. Scientific Data, 6(1):222, 2019. doi:10.1038/s41597-019-0229-9Camera Imagery
Milliman, T., B. Seyednasrollah, A.M. Young, K. Hufkens, M.A. Friedl, S. Frolking, A.D. Richardson, M. Abraha, D.W. Allen, M. Apple, M.A. Arain, J.M. Baker, D. Baldocchi, C.J. Bernacchi, J. Bhattacharjee, P. Blanken, D.D. Bosch, R. Boughton, E.H. Boughton, R.F. Brown, D.M. Browning, N. Brunsell, S.P. Burns, M. Cavagna, H. Chu, P.E. Clark, B.J. Conrad, E. Cremonese, D. Debinski, A.R. Desai, R. Diaz-Delgado, L. Duchesne, A.L. Dunn, D.M. Eissenstat, T. El-Madany, D.S.S. Ellum, S.M. Ernest, A. Esposito, L. Fenstermaker, L.B. Flanagan, B. Forsythe, J. Gallagher, D. Gianelle, T. Griffis, P. Groffman, L. Gu, J. Guillemot, M. Halpin, P.J. Hanson, D. Hemming, A.A. Hove, E.R. Humphreys, A. Jaimes-Hernandez, A.A. Jaradat, J. Johnson, E. Keel, V.R. Kelly, J.W. Kirchner, P.B. Kirchner, M. Knapp, M. Krassovski, O. Langvall, G. Lanthier, G.l. Maire, E. Magliulo, T.A. Martin, B. McNeil, G.A. Meyer, M. Migliavacca, B.P. Mohanty, C.E. Moore, R. Mudd, J.W. Munger, Z.E. Murrell, Z. Nesic, H.S. Neufeld, W. Oechel, A.C. Oishi, W.W. Oswald, T.D. Perkins, M.L. Reba, B. Rundquist, B.R. Runkle, E.S. Russell, E.J. Sadler, A. Saha, N.Z. Saliendra, L. Schmalbeck, M.D. Schwartz, R.L. Scott, E.M. Smith, O. Sonnentag, P. Stoy, S. Strachan, K. Suvocarev, J.E. Thom, R.Q. Thomas, A.K. Van den berg, R. Vargas, J. Verfaillie, C.S. Vogel, J.J. Walker, N. Webb, P. Wetzel, S. Weyers, A.V. Whipple, T.G. Whitham, G. Wohlfahrt, J.D. Wood, J. Yang, X. Yang, G. Yenni, Y. Zhang, Q. Zhang, and D. Zona. 2019. PhenoCam Dataset v2.0: Digital Camera Imagery from the PhenoCam Network, 2000-2018. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1689
Green Chromatic Coordinate Time Series
Seyednasrollah, B., A.M. Young, K. Hufkens, T. Milliman, M.A. Friedl, S. Frolking, A.D. Richardson, M. Abraha, D.W. Allen, M. Apple, M.A. Arain, J. Baker, J.M. Baker, D. Baldocchi, C.J. Bernacchi, J. Bhattacharjee, P. Blanken, D.D. Bosch, R. Boughton, E.H. Boughton, R.F. Brown, D.M. Browning, N. Brunsell, S.P. Burns, M. Cavagna, H. Chu, P.E. Clark, B.J. Conrad, E. Cremonese, D. Debinski, A.R. Desai, R. Diaz-Delgado, L. Duchesne, A.L. Dunn, D.M. Eissenstat, T. El-Madany, D.S.S. Ellum, S.M. Ernest, A. Esposito, L. Fenstermaker, L.B. Flanagan, B. Forsythe, J. Gallagher, D. Gianelle, T. Griffis, P. Groffman, L. Gu, J. Guillemot, M. Halpin, P.J. Hanson, D. Hemming, A.A. Hove, E.R. Humphreys, A. Jaimes-Hernandez, A.A. Jaradat, J. Johnson, E. Keel, V.R. Kelly, J.W. Kirchner, P.B. Kirchner, M. Knapp, M. Krassovski, O. Langvall, G. Lanthier, G.l. Maire, E. Magliulo, T.A. Martin, B. McNeil, G.A. Meyer, M. Migliavacca, B.P. Mohanty, C.E. Moore, R. Mudd, J.W. Munger, Z.E. Murrell, Z. Nesic, H.S. Neufeld, T.L. O'Halloran, W. Oechel, A.C. Oishi, W.W. Oswald, T.D. Perkins, M.L. Reba, B. Rundquist, B.R. Runkle, E.S. Russell, E.J. Sadler, A. Saha, N.Z. Saliendra, L. Schmalbeck, M.D. Schwartz, R.L. Scott, E.M. Smith, O. Sonnentag, P. Stoy, S. Strachan, K. Suvocarev, J.E. Thom, R.Q. Thomas, A.K. Van den berg, R. Vargas, J. Verfaillie, C.S. Vogel, J.J. Walker, N. Webb, P. Wetzel, S. Weyers, A.V. Whipple, T.G. Whitham, G. Wohlfahrt, J.D. Wood, S. Wolf, J. Yang, X. Yang, G. Yenni, Y. Zhang, Q. Zhang, and D. Zona. 2019. PhenoCam Dataset v2.0: Vegetation Phenology from Digital Camera Imagery, 2000-2018. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1674
GeoNEX Data Products
GeoNEX led by NASA Earth eXchange (NEX) is a collaborative effort for generating Earth monitoring products from the new generation of geostationary satellite sensors. GeoNEX has produced a suite of geostationary data products including surface reflectance, land surface temperature, surface solar radiation, and many others.
The GeoNEX Common Grid locates GeoNEX data in the geographic (latitude/longitude) projection. Pixels (grid cells) are created at regular 0.005°, 0.01°, and 0.02° resolutions.
GeoNEX pixels below cover the area 0.06° x 0.06° around and including site CA-Obs, 53.9872, -105.1178.
Click a square in the grid at left to display its data below.
Coordinates for selected GeoNEX Pixel
Lat: 54.0100 Long: -105.1400
CA-Obs
Graph controls:
- Zoom: click-drag
- Pan: shift-click-drag
- Restore zoom level: double-click
- Use the slider below the time series to zoom in and out.
All download requests will be logged.
NDVI: Normalized Difference Vegetation Index
No NDVI data have been received for site CA-Obs.
NDVI (unitless)
Resolution: 0.01° x 0.01° & 10 minutes
Coordinates for pixel: Lat: 54.0100 Long: -105.1400
NIRv Near-Infrared Reflectance of vegetation
No NIRv data have been received for site CA-Obs.
NIRv (unitless)
Resolution: 0.01° x 0.01° & 10 minutes
Coordinates for pixel: Lat: 54.0100 Long: -105.1400
DSR: Surface downward shortwave radiation
No DSR data have been received for site CA-Obs.
Shortwave Radiation (W/m2)
Resolution: 0.01° x 0.01° & Hourly
Coordinates for pixel: Lat: 54.0100 Long: -105.1400
LST: Land Surface Temperature
No LST data have been received for site CA-Obs.
LST (K)
Resolution: 0.02° x 0.02° & Hourly
Coordinates for pixel: Lat: 54.0000 Long: -105.1400
Citation
This material can be used without obtaining permission from NASA. NASA should be acknowledged as the source of this material.
Subset Data Citation:
- Hashimoto, H., Wang, W., Park, T., Khajehei, S., Ichii, K., Michaelis, A.R., Guzman, A., Nemani, R.R., Torn, M., Yi, K., Brosnan, I.G. (in preparation). Subsets of geostationary satellite data over international observing network sites for studying the diurnal dynamics of energy, carbon, and water cycles.
Relevant Science Publication Citation:
GeoNEX Surface Reflectance for Vegetation Indices (NDVI & NIRv)- Wang, W., Wang, Y., Lyapustin, A., Hashimoto, H., Park, T., Michaelis, A., & Nemani, R. (2022). A novel atmospheric correction algorithm to exploit the diurnal variability in hypertemporal geostationary observations. Remote Sensing, 14(4), 964.
- Li, R., Wang, D., Wang, W., & Nemani, R. (2023). A GeoNEX-based high-spatiotemporal-resolution product of land surface downward shortwave radiation and photosynthetically active radiation. Earth System Science Data, 15(3), 1419-1436.
- Jia, A., Liang, S., & Wang, D. (2022). Generating a 2-km, all-sky, hourly land surface temperature product from Advanced Baseline Imager data. Remote Sensing of Environment, 278, 113105.
CA-Obs: Saskatchewan - Western Boreal, Mature Black Spruce
- Overview
- Windroses
- Data Citation
- Data Use Log
- Image Gallery
- Remote Sensing Data
- MODIS
- PhenoCam
- GeoNEX
- Publications
- BADM
Search Publications for this Site
Publications Found: 42
| AmeriFlux Publications | Add Publication |
| Year | Publication |
|---|---|
| 2022 | Pierrat, Z., Magney, T., Parazoo, N. C., Grossmann, K., Bowling, D. R., Seibt, U., Johnson, B., Helgason, W., Barr, A., Bortnik, J., Norton, A., Maguire, A., Frankenberg, C., Stutz, J. (2022) Diurnal And Seasonal Dynamics Of Solar‐Induced Chlorophyll Fluorescence, Vegetation Indices, And Gross Primary Productivity In The Boreal Forest, Journal Of Geophysical Research: Biogeosciences, 127(2), . https://doi.org/https://doi.org/10.1029/2021JG006588 |
| 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. https://doi.org/10.1016/j.agrformet.2021.108350 |
| 2021 | Pierrat, Z., Nehemy, M. F., Roy, A., Magney, T., Parazoo, N. C., Laroque, C., Pappas, C., Sonnentag, O., Grossmann, K., Bowling, D. R., Seibt, U., Ramirez, A., Johnson, B., Helgason, W., Barr, A., Stutz, J. (2021) Tower‐Based Remote Sensing Reveals Mechanisms Behind A Two‐Phased Spring Transition In A Mixed‐Species Boreal Forest, Journal Of Geophysical Research: Biogeosciences, 126(5), . https://doi.org/https://doi.org/10.1029/2020JG006191 |
| 2020 | Xu, B., Arain, M. A., Black, T. A., Law, B. E., Pastorello, G. Z., Chu, H. (2020) Seasonal Variability Of Forest Sensitivity To Heat And Drought Stresses: A Synthesis Based On Carbon Fluxes From North American Forest Ecosystems, Global Change Biology, 26(2), 901-918. https://doi.org/10.1111/gcb.14843 |
| 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. https://doi.org/10.1029/2018GL079306 |
| 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. https://doi.org/10.1016/j.agrformet.2015.03.010 |
| 2014 | Gaumont-Guay, D., Black, T., Barr, A., Griffis, T., Jassal, R., Krishnan, P., Grant, N., Nesic, Z. (2014) Eight Years Of Forest-Floor Co2 Exchange In A Boreal Black Spruce Forest: Spatial Integration And Long-Term Temporal Trends, Agricultural And Forest Meteorology, 184, 25-35. https://doi.org/10.1016/j.agrformet.2013.08.010 |
| 2013 | Barr, A., Richardson, A., Hollinger, D., Papale, D., Arain, M., Black, T., Bohrer, G., Dragoni, D., Fischer, M., Gu, L., Law, B., Margolis, H., McCaughey, J., Munger, J., Oechel, W., Schaeffer, K. (2013) Use Of Change-Point Detection For Friction–Velocity Threshold Evaluation In Eddy-Covariance Studies, Agricultural And Forest Meteorology, 171-172, 31-45. https://doi.org/10.1016/j.agrformet.2012.11.023 |
| 2012 | Richardson, A. D., Anderson, R. S., Arain, M. A., Barr, A. G., Bohrer, G., Chen, G., Chen, J. M., Ciais, P., Davis, K. J., Desai, A. R., Dietze, M. C., Dragoni, D., Garrity, S. R., Gough, C. M., Grant, R., Hollinger, D. Y., Margolis, H. A., McCaughey, H., Migliavacca, M., Monson, R. K., Munger, J. W., Poulter, B., Raczka, B. M., Ricciuto, D. M., Sahoo, A. K., Schaefer, K., Tian, H., Vargas, R., Verbeeck, H., Xiao, J., Xue, Y. (2012) Terrestrial Biosphere Models Need Better Representation Of Vegetation Phenology: Results From The North American Carbon Program Site Synthesis, Global Change Biology, 18(2), 566-584. https://doi.org/10.1111/j.1365-2486.2011.02562.x |
| 2009 | GAUMONT-GUAY, D., BLACK, T. A., MCCAUGHEY, H., BARR, A. G., KRISHNAN, P., JASSAL, R. S., NESIC, Z. (2009) Soil Co2efflux In Contrasting Boreal Deciduous And Coniferous Stands And Its Contribution To The Ecosystem Carbon Balance, Global Change Biology, 15(5), 1302-1319. https://doi.org/10.1111/j.1365-2486.2008.01830.x |
| 2008 | Krishnan, P., Black, T. A., Barr, A. G., Grant, N. J., Gaumont-Guay, D., Nesic, Z. (2008) Factors Controlling The Interannual Variability In The Carbon Balance Of A Southern Boreal Black Spruce Forest, Journal Of Geophysical Research, 113(D9), . https://doi.org/doi:10.1029/2007JD008965 |
| 2007 | Bergeron, O., Margolis, H. A., Black, T. A., Coursolle, C., Dunn, A. L., Barr, A. G., Wofsy, S. C. (2007) Comparison Of Carbon Dioxide Fluxes Over Three Boreal Black Spruce Forests In Canada, Global Change Biology, 13(1), 89-107. https://doi.org/10.1111/j.1365-2486.2006.01281.x |
| 2004 | Bond-Lamberty, B., Wang, C., Gower, S. T. (2004) A Global Relationship Between The Heterotrophic And Autotrophic Components Of Soil Respiration?, Global Change Biology, 10(10), 1756-1766. https://doi.org/10.1111/j.1365-2486.2004.00816.x |
| 2003 | O'Connell, K. E., Gower, S. T., Norman, J. M. (2003) Comparison Of Net Primary Production And Light-Use Dynamics Of Two Boreal Black Spruce Forest Communities, Ecosystems, 6(3), 236-247. https://doi.org/10.1007/pl00021510 |
| 2003 | Turner, D. P., Urbanski, S., Bremer, D., Wofsy, S. C., Meyers, T., Gower, S. T., Gregory, M. (2003) A Cross-Biome Comparison Of Daily Light Use Efficiency For Gross Primary Production, Global Change Biology, 9(3), 383-395. https://doi.org/10.1046/j.1365-2486.2003.00573.x |
| 2003 | Chen, J. M., Ju, W., Cihlar, J., Price, D., Liu, J., Chen, W., Pan, J., Black, A., Barr, A. (2003) Spatial Distribution Of Carbon Sources And Sinks In Canada's Forests, Tellus Series B-Chemical and Physical Meteorology, 55(2), 622-641. https://doi.org/10.1034/j.1600-0889.2003.00036.x |
| 2003 | Griffis, T., Black, T., Morgenstern, K., Barr, A., Nesic, Z., Drewitt, G., Gaumont-Guay, D., McCaughey, J. (2003) Ecophysiological Controls On The Carbon Balances Of Three Southern Boreal Forests, Agricultural And Forest Meteorology, 117(1-2), 53-71. https://doi.org/10.1016/s0168-1923(03)00023-6 |
| 2002 | Rayment, M. B., Loustau, D., Jarvis, P. J. (2002) Photosynthesis And Respiration Of Black Spruce At Three Organizational Scales: Shoot, Branch And Canopy, Tree Physiology, 22(4), 219-229. https://doi.org/10.1093/treephys/22.4.219 |
| 2002 | Mahrt, L., Vickers, D. (2002) Relationship Of Area-Averaged Carbon Dioxide And Water Vapour Fluxes To Atmospheric Variables, Agricultural And Forest Meteorology, 112(3-4), 195-202. https://doi.org/10.1016/s0168-1923(02)00079-5 |
| 2001 | Swanson, R. V., Flanagan, L. B. (2001) Environmental Regulation Of Carbon Dioxide Exchange At The Forest Floor In A Boreal Black Spruce Ecosystem, Agricultural And Forest Meteorology, 108(3), 165-181. https://doi.org/10.1016/s0168-1923(01)00243-x |
| 2001 | Gower, S. T., Krankina, O., Olson, R. J., Apps, M., Linder, S., Wang, C. (2001) Net Primary Production And Carbon Allocation Patterns Of Boreal Forest Ecosystems, Ecological Applications, 11(5), 1395-1411. https://doi.org/10.2307/3060928 |
| 2001 | Whitehead, D., Gower, S. T. (2001) Photosynthesis And Light-Use Efficiency By Plants In A Canadian Boreal Forest Ecosystem, Tree Physiology, 21(12-13), 925-929. https://doi.org/10.1093/treephys/21.12-13.925 |
| 2001 | Bisbee, K., Gower, S., Norman, J., Nordheim, E. (2001) Environmental Controls On Ground Cover Species Composition And Productivity In A Boreal Black Spruce Forest, Oecologia, 129(2), 261-270. https://doi.org/10.1007/s004420100719 |
| 2001 | Nakamura, R., Mahrt, L. (2001) Similarity Theory For Local And Spatially Averaged Momentum Fluxes, Agricultural And Forest Meteorology, 108(4), 265-279. https://doi.org/10.1016/s0168-1923(01)00250-7 |
| 2000 | Nichol, C. J., Huemmrich, K. F., Black, T., Jarvis, P. G., Walthall, C. L., Grace, J., Hall, F. G. (2000) Remote Sensing Of Photosynthetic-Light-Use Efficiency Of Boreal Forest, Agricultural And Forest Meteorology, 101(2-3), 131-142. https://doi.org/10.1016/s0168-1923(99)00167-7 |
| 1999 | Roujean, J. (1999) Measurements Of PAR Transmittance Within Boreal Forest Stands During BOREAS, Agricultural And Forest Meteorology, 93(1), 1-6. https://doi.org/10.1016/s0168-1923(98)00110-5 |
| 1999 | Gastellu-Etchegorry, J., Guillevic, P., Zagolski, F., Demarez, V., Trichon, V., Deering, D., Leroy, M. (1999) Modeling BRFAnd Radiation Regime Of Boreal And Tropical Forests, Remote Sensing Of Environment, 68(3), 281-316. https://doi.org/10.1016/s0034-4257(98)00119-9 |
| 1999 | Sandmeier, S., Deering, D. (1999) Structure Analysis And Classification Of Boreal Forests Using Airborne Hyperspectral BRDF Data From ASAS, Remote Sensing Of Environment, 69(3), 281-295. https://doi.org/10.1016/s0034-4257(99)00032-2 |
| 1999 | Kucharik, C. J., Norman, J. M., Gower, S. T. (1999) Characterization Of Radiation Regimes In Nonrandom Forest Canopies: Theory, Measurements, And A Simplified Modeling Approach, Tree Physiology, 19(11), 695-706. https://doi.org/10.1093/treephys/19.11.695 |
| 1999 | Rayment, M. B., Jarvis, P. G. (1999) Seasonal Gas Exchange Of Black Spruce Using An Automatic Branch Bag System, Canadian Journal Of Forest Research, 29(10), 1528-1538. https://doi.org/10.1139/cjfr-29-10-1528 |
| 1999 | Malhi, Y., Baldocchi, D. D., Jarvis, P. G. (1999) The Carbon Balance Of Tropical, Temperate And Boreal Forests, Plant, Cell And Environment, 22(6), 715-740. https://doi.org/10.1046/j.1365-3040.1999.00453.x |
| 1997 | Goulden, M. L., Crill, P. M. (1997) Automated Measurements Of CO2 Exchange At The Moss Surface Of A Black Spruce Forest, Tree Physiology, 17(8-9), 537-542. https://doi.org/10.1093/treephys/17.8-9.537 |
| 1997 | Kimball, J. S., Thornton, P. E., White, M. A., Running, S. W. (1997) Simulating Forest Productivity And Surface-Atmosphere Carbon Exchange In The BOREAS Study Region, Tree Physiology, 17(8-9), 589-599. https://doi.org/10.1093/treephys/17.8-9.589 |
| 1997 | Lerdau, M., Litvak, M., Palmer, P., Monson, R. (1997) Controls Over Monoterpene Emissions From Boreal Forest Conifers, Tree Physiology, 17(8-9), 563-569. https://doi.org/10.1093/treephys/17.8-9.563 |
| 1997 | Goulden, M. L., Daube, B. C., Fan, S., Sutton, D. J., Bazzaz, A., Munger, J. W., Wofsy, S. C. (1997) Physiological Responses Of A Black Spruce Forest To Weather, Journal Of Geophysical Research: Atmospheres, 102(D24), 28987-28996. https://doi.org/10.1029/97jd01111 |
| 1997 | Steele, S. J., Gower, S. T., Vogel, J. G., Norman, J. M. (1997) Root Mass, Net Primary Production And Turnover In Aspen, Jack Pine And Black Spruce Forests In Saskatchewan And Manitoba, Canada, Tree Physiology, 17(8-9), 577-587. https://doi.org/10.1093/treephys/17.8-9.577 |
| 1997 | Sullivan, J. H., Bovard, B. D., Middleton, E. M. (1997) Variability In Leaf-Level CO2 And Water Fluxes In Pinus Banksiana And Picea Mariana In Saskatchewan, Tree Physiology, 17(8-9), 553-561. https://doi.org/10.1093/treephys/17.8-9.553 |
| 1997 | Saugier, B., Granier, A., Pontailler, J. Y., Dufrene, E., Baldocchi, D. D. (1997) Transpiration Of A Boreal Pine Forest Measured By Branch Bag, Sap Flow And Micrometeorological Methods, Tree Physiology, 17(8-9), 511-519. https://doi.org/10.1093/treephys/17.8-9.511 |
| 1997 | Lavigne, M. B., Ryan, M. G. (1997) Growth And Maintenance Respiration Rates Of Aspen, Black Spruce And Jack Pine Stems At Northern And Southern BOREAS Sites, Tree Physiology, 17(8-9), 543-551. https://doi.org/10.1093/treephys/17.8-9.543 |
| 1997 | Jarvis, P. G., Massheder, J. M., Hale, S. E., Moncrieff, J. B., Rayment, M., Scott, S. L. (1997) Seasonal Variation Of Carbon Dioxide, Water Vapor, And Energy Exchanges Of A Boreal Black Spruce Forest, Journal Of Geophysical Research: Atmospheres, 102(D24), 28953-28966. https://doi.org/10.1029/97jd01176 |
| 1997 | Margolis, H. A., Ryan, M. G. (1997) A Physiological Basis For Biosphere-Atmosphere Interactions In The Boreal Forest: An Overview, Tree Physiology, 17(8-9), 491-499. https://doi.org/10.1093/treephys/17.8-9.491 |
| 1997 | Brooks, J. R., Flanagan, L. B., Varney, G. T., Ehleringer, J. R. (1997) Vertical Gradients In Photosynthetic Gas Exchange Characteristics And Refixation Of Respired CO2 Within Boreal Forest Canopies, Tree Physiology, 17(1), 1-12. https://doi.org/10.1093/treephys/17.1.1 |
CA-Obs: Saskatchewan - Western Boreal, Mature Black Spruce
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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.
- Download BADM for this site*
- View Site General Info for this site (Overview tab)*
- Use Online Editor to update Site General Info or DOI Authorship
- Update information about submitted data (Variable Information tool)
- More BADM resources
* 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.
CA-Obs: Saskatchewan - Western Boreal, Mature Black Spruce
- Overview
- Windroses
- Data Citation
- Data Use Log
- Image Gallery
- Remote Sensing Data
- MODIS
- PhenoCam
- GeoNEX
- Publications
- BADM
Wind Roses
Click an image below to enlarge it, or use the navigation panel.
Wind Speed (m/s)
Navigation
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