US-Wi2: Intermediate red pine (IRP)

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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 US-Wi2 data

Data Use Policy: AmeriFlux CC-BY-4.0 License

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AmeriFlux BASE: https://doi.org/10.17190/AMF/1246017
Citation: Jiquan Chen (2020), AmeriFlux BASE US-Wi2 Intermediate red pine (IRP), Ver. 3-5, AmeriFlux AMP, (Dataset). https://doi.org/10.17190/AMF/1246017

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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US-Wi2: Intermediate red pine (IRP)

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US-Wi2: Intermediate red pine (IRP)

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US-Wi2: Intermediate red pine (IRP)

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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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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

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.

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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 .

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Beta: This AmeriFlux GeoNEX Products feature is in beta. If you spot any issues, please help us out by emailing geonex-feedback@lbl.gov with a description and/or screenshot of the issue. Thanks in advance!

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.

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NDVI: Normalized Difference Vegetation Index

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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.

US-Wi2: Intermediate red pine (IRP)

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Search Publications for this Site Publications Found: 3

AmeriFlux Publications

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Year	Publication
2007	Noormets, A., Chen, J., Crow, T. R. (2007) Age-Dependent Changes In Ecosystem Carbon Fluxes In Managed Forests In Northern Wisconsin, USA, Ecosystems, 10(2), 187-203. https://doi.org/10.1007/s10021-007-9018-y
2008	Noormets, A., Desai, A., Cook, B., Euskirchen, E., Ricciuto, D., Davis, K., Bolstad, P., Schmid, H., Vogel, C., Carey, E., Su, H., Chen, J. (2008) Moisture Sensitivity Of Ecosystem Respiration: Comparison Of 14 Forest Ecosystems In The Upper Great Lakes Region, USA, Agricultural And Forest Meteorology, 148(2), 216-230. https://doi.org/10.1016/j.agrformet.2007.08.002
2008	Desai, A. R., Noormets, A., Bolstad, P. V., Chen, J., Cook, B. D., Davis, K. J., Euskirchen, E. S., Gough, C., Martin, J. G., Ricciuto, D. M., Schmid, H. P., Tang, J., Wang, W. (2008) Influence Of Vegetation And Seasonal Forcing On Carbon Dioxide Fluxes Across The Upper Midwest, Usa: Implications For Regional Scaling, Agricultural And Forest Meteorology, 148(2), 288-308. https://doi.org/10.1016/j.agrformet.2007.08.001

US-Wi2: Intermediate red pine (IRP)

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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.

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US-Wi2: Intermediate red pine (IRP)

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Wind Roses

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Image scale: 696m x 696m

Data Collected:

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

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Wind Speed Scale

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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

Tower_team:
PI:	Jiquan Chen jqchen@msu.edu - Michigan State University
Lat, Long:	46.6869, -91.1528
Elevation(m):	395
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:	Dfb (Warm Summer Continental: significant precipitation in all seasons )
Mean Annual Temp (°C):	—
Mean Annual Precip. (mm):	—
Flux Species Measured:	CO2
Years Data Collected:	2003 - 2003
Years Data Available:	AmeriFlux BASE 2003 Data Citation
Data Use Policy:	AmeriFlux CC-BY-4.0 Policy¹
Description:	The Wisconsin Intermediate Red Pine site is located in the Washburn Ranger District of the northeastern section of Chequamegon National Forest. A member ... The Wisconsin Intermediate Red Pine site is located in the Washburn Ranger District of the northeastern section of Chequamegon National Forest. A member of the northern coniferous-deciduous biome, surveys from the mid-19th century indicate the region consisted of a mixed stand of red, white, and jack pines. After extensive timber harvesting, wildfires, and farming activity, the region turned into a fragmented mosaic of stands of various ages and composition. The intermediate red pine site is one of ten sites that collectively represent the successional stages of development in the predominant stand types of a physically homogeneous landscape. Thinned every 7 years until they reach 100 to 150 years of age, the red pine plantations of all ages occupy approximately 25% of the region. See More Show Less
URL:	http://research.eeescience.utoledo.edu/lees/research/carbon/
Research Topics:	The research and science objectives of the Wisconsin Intermediate Red Pine are as follows: 1) Enhance our understanding of landscape-level carbon exchange ... The research and science objectives of the Wisconsin Intermediate Red Pine are as follows: 1) Enhance our understanding of landscape-level carbon exchange in disturbed land mosaics, taking into specific consideration age structure and the area-of- edge-influences (AEI); 2) Determine how the cumulative NEP of a landscape is determined by the land mosaic; that is, the various ages and types of ecosystems present, as well as their arrangement; 3) Investigate the temporal and spatial changes in landscape structure and vegetative composition across a landscape managed for multiple uses within the Chequamegon National Forest in northern Wisconsin; 4) Quantify the developmental changes in Carbon fluxes following stand replacing disturbances; 5) Investigate the common factors that might explain the observed variability among the closely spaced, but diverse, forest ecosystems that represent a disturbed, actively managed and climatically homogeneous forest landscape; 6) Quantify the role of soil moisture in affecting ecosystem respiration; 7) Identify landscape-level patterns in the temperature and moisture response of ecosystem respiration as determined by forest functional type and stage of development. (Project Overview by Primary Investigators: J. Chen and K. Brosofske; Bresee et al., 2004; Noormets et al., 2007; Noormets et al., 2008) See More Show Less
Acknowledgment:	—

US-Wi2: Intermediate red pine (IRP)

US-Wi2: Intermediate red pine (IRP)

DOI(s) for citing US-Wi2 data

Publication(s) for citing site characterization

Acknowledgments

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US-Wi2: Intermediate red pine (IRP)

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US-Wi2: Intermediate red pine (IRP)

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US-Wi2: Intermediate red pine (IRP)

US-Wi2: Intermediate red pine (IRP)

BADM for This Site

US-Wi2: Intermediate red pine (IRP)

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