US-CX1: Central Plains Experimental Range 1, Nunn, Colorado

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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-CX1 data

Data Use Policy: AmeriFlux Legacy Policy

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US-CX1: Central Plains Experimental Range 1, Nunn, Colorado

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US-CX1: Central Plains Experimental Range 1, Nunn, Colorado

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US-CX1: Central Plains Experimental Range 1, Nunn, Colorado

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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

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.

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 .

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GeoNEX Data Products

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.

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 .

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NDVI: Normalized Difference Vegetation Index

Resolution: 0.01° x 0.01° & 10 minutes

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NIRv Near-Infrared Reflectance of vegetation

Resolution: 0.01° x 0.01° & 10 minutes

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DSR: Surface downward shortwave radiation

Resolution: 0.01° x 0.01° & Hourly

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LST: Land Surface Temperature

Resolution: 0.02° x 0.02° & Hourly

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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-CX1: Central Plains Experimental Range 1, Nunn, Colorado

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US-CX1: Central Plains Experimental Range 1, Nunn, Colorado

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BADM for This Site

Access the Biological, Ancillary, Disturbance and Metadata (BADM) information and data for this site.

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US-CX1: Central Plains Experimental Range 1, Nunn, Colorado

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Tower_team:
PI:	David Hoover David.Hoover@usda.gov - Rangeland Resouces and Systems Research, Agicultural Research Service, USDA
Technician:	David Smith David.Smith2@usda.gov - Rangeland Resouces and Systems Research, Agicultural Research Service, USDA
Lat, Long:	40.8330, -104.7600
Elevation(m):	1600
Network Affiliations:	AmeriFlux, LTAR
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:	—
Mean Annual Temp (°C):	8.4
Mean Annual Precip. (mm):	340
Flux Species Measured:	CO2
Years Data Collected:	2016 - Present
Years Data Available:	No data available
Data Use Policy:	AmeriFlux Legacy Policy
Description:	The CPER LTAR site encompassed a large portion of the Colorado Piedmont Section of the western Great Plains. The research site is located 61 km east of ... The CPER LTAR site encompassed a large portion of the Colorado Piedmont Section of the western Great Plains. The research site is located 61 km east of Fort Collins and 40 km northeast of Greeley in Weld County, Colorado. The CPER is a contiguous 6280 ha block of land. Grazing studies begun in the 1930's are still being conducted to evaluate the long-term impacts of livestock on rangeland resources. This tower is located in a pasture with traditional grazing management See More Show Less
URL:	—
Research Topics:	appropriated
Acknowledgment:	This research was a contribution from the Long-Term Agroecosystem Research (LTAR) network. LTAR is supported by the United States Department of Agriculture.

US-CX1: Central Plains Experimental Range 1, Nunn, Colorado

US-CX1: Central Plains Experimental Range 1, Nunn, Colorado

DOI(s) for citing US-CX1 data

Publication(s) for citing site characterization

Acknowledgments

Resources

US-CX1: Central Plains Experimental Range 1, Nunn, Colorado

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US-CX1: Central Plains Experimental Range 1, Nunn, Colorado

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US-CX1: Central Plains Experimental Range 1, Nunn, Colorado

US-CX1: Central Plains Experimental Range 1, Nunn, Colorado

BADM for This Site

US-CX1: Central Plains Experimental Range 1, Nunn, Colorado

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