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DOI(s) for citing CA-MA3 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.
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AmeriFlux BASE: https://doi.org/10.17190/AMF/1617703
Citation: Brian Amiro (2023), AmeriFlux BASE CA-MA3 Manitoba Agricultural Site 3, Ver. 2-5, AmeriFlux AMP, (Dataset). https://doi.org/10.17190/AMF/1617703
AmeriFlux FLUXNET: https://doi.org/10.17190/AMF/2007167
Citation: Brian Amiro (2024), AmeriFlux FLUXNET-1F CA-MA3 Manitoba Agricultural Site 3, Ver. 4-6, AmeriFlux AMP, (Dataset). https://doi.org/10.17190/AMF/2007167

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Publication(s) for citing site characterization

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Acknowledgments

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Resources

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MA3_PerennialHay
**Description:**
Perennial hay crop in 2010, Manitoba
Keywords: hay, grassland,,agriculture,crop
**Site ID:** CA-MA3
**Location:** Manitoba, Canada
**Image Date:** 2010/07/07
**Journal:** —
**Article Title:** —
**Copyright Permissions:** —
**Right to Use:** Open use

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MODIS NDVI

The time series shows the 16-day Normalized Difference Vegetation Index (NDVI) average from the MOD13Q1 data product.
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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

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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.

GeoNEX Surface Downward Solar Radiation (DSR):

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.

GeoNEX Land Surface Temperature (LST):

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.

Search Publications for this Site Publications Found: 2

AmeriFlux Publications

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Year	Publication
2013	Taylor, A. M., Amiro, B. D., Fraser, T. J. (2013) Net Co2 Exchange And Carbon Budgets Of A Three-Year Crop Rotation Following Conversion Of Perennial Lands To Annual Cropping In Manitoba, Canada, Agricultural And Forest Meteorology, 182-183, 67-75. https://doi.org/10.1016/j.agrformet.2013.07.008
2013	Fraser, T. J., Amiro, B. D. (2013) Initial Carbon Dynamics Of Perennial Grassland Conversion For Annual Cropping In Manitoba, Canadian Journal Of Soil Science, 93(3), 379-391. https://doi.org/10.4141/cjss2012-109

BADM for This Site

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Wind Roses

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Wind roses use variables ‘WS’ and ‘WD’.
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Wind Speed (m/s)

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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.

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The wind roses are based on observed hourly data from the sites registered with the AmeriFlux Network.

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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

Tower_team:
PI:	Brian Amiro brian_amiro@umanitoba.ca - University of Manitoba
Lat, Long:	50.1774, -97.8686
Elevation(m):	261
Network Affiliations:	AmeriFlux
Vegetation IGBP:	GRA (Grasslands: Lands with herbaceous types of cover. Tree and shrub cover is less than 10%. Permanent wetlands lands with a permanent mixture of water and herbaceous or woody vegetation. The vegetation can be present in either salt, brackish, or fresh water.)
Climate Koeppen:	Dfb (Warm Summer Continental: significant precipitation in all seasons )
Mean Annual Temp (°C):	2.6
Mean Annual Precip. (mm):	514
Flux Species Measured:	CO2, H, H2O
Years Data Collected:	2009 - 2011
Years Data Available:	AmeriFlux BASE 2009 - 2011 Data Citation AmeriFlux FLUXNET 2009 - 2011 Data Citation
Data Use Policy:	AmeriFlux CC-BY-4.0 Policy¹
Description:	This field has been in perennial forages (grass (timothy, fescue, brome) with small amount of legume) for several decades. Field size = 40 ha. Hay was ... This field has been in perennial forages (grass (timothy, fescue, brome) with small amount of legume) for several decades. Field size = 40 ha. Hay was harvested once each year. Cattle were placed in the field each autumn to graze. See Table 1 in Taylor et al (2013) describing site management practices. See More Show Less
URL:	—
Research Topics:	Agriculture, cropping systems, land-use change; perennial crop
Acknowledgment:	—

CA-MA3: Manitoba Agricultural Site 3

CA-MA3: Manitoba Agricultural Site 3

DOI(s) for citing CA-MA3 data

Publication(s) for citing site characterization

Acknowledgments

Resources

CA-MA3: Manitoba Agricultural Site 3

Not Found

CA-MA3: Manitoba Agricultural Site 3

MA3_PerennialHay

CA-MA3: Manitoba Agricultural Site 3

CA-MA3: Manitoba Agricultural Site 3

BADM for This Site

CA-MA3: Manitoba Agricultural Site 3

Wind Roses

Wind Speed (m/s)

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