US-CGG: Concord Grazed Grassland

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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-CGG 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 US-CGG data are combined with data from sites that require the AmeriFlux Legacy Policy.

AmeriFlux BASE: https://doi.org/10.17190/AMF/1987600
Citation: Patty Oikawa (2023), AmeriFlux BASE US-CGG Concord Grazed Grassland, Ver. 1-5, AmeriFlux AMP, (Dataset). https://doi.org/10.17190/AMF/1987600
AmeriFlux FLUXNET: https://doi.org/10.17190/AMF/2469446
Citation: Patty Oikawa (2024), AmeriFlux FLUXNET-1F US-CGG Concord Grazed Grassland, Ver. 3-6, AmeriFlux AMP, (Dataset). https://doi.org/10.17190/AMF/2469446

Find global FLUXNET datasets, like FLUXNET2015 and FLUXNET-CH4, and their citation information at fluxnet.org.

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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US-CGG: Concord Grazed Grassland

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US-CGG: Concord Grazed Grassland

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Site Picture for US-CGG
**Description:**
site picture for US-CGG
Keywords: —
**Credit:** Patty Oikawa
**Site ID:** US-CGG
**Location:** California, United States
**Image Date:** 2022/01/12
**Journal:** —
**Article Title:** —
**Copyright Permissions:** As long as credit is given.
**Right to Use:** As long as credit is given

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US-CGG: Concord Grazed Grassland

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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.

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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.

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.

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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

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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-CGG: Concord Grazed Grassland

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US-CGG: Concord Grazed Grassland

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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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View Site General Info for this site (Overview tab)^*

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US-CGG: Concord Grazed Grassland

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Tower_team:
PI:	Patty Oikawa Patty.oikawa@csueastbay.edu - California State University, East Bay
Lat, Long:	37.9380, -121.9761
Elevation(m):	119.5
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:	Csa (Mediterranean: mild with dry, hot summer)
Mean Annual Temp (°C):	16
Mean Annual Precip. (mm):	419
Flux Species Measured:	H2O, CO2
Years Data Collected:	2019 - Present
Years Data Available:	AmeriFlux BASE 2019 - 2022 Data Citation AmeriFlux FLUXNET 2019 - 2021 Data Citation
Data Use Policy:	AmeriFlux CC-BY-4.0 Policy¹
Description:	This tower located on a grazed grassland in Concord, CA. The land is owned by Cal State East Bay and leased to a local rancher. Approximately 60 head ... This tower located on a grazed grassland in Concord, CA. The land is owned by Cal State East Bay and leased to a local rancher. Approximately 60 head of cattle graze the site from December to April.The site is dominated by annual cool season grasses. The soil on the site is described as Altamont Clay. See More Show Less
URL:	https://pattyoikawa.weebly.com/
Research Topics:	Processing collected flux data, Instrument QA. In the Fall of 2020 compost will be applied to a portion of the tower's footprint, so that the tower can ... Processing collected flux data, Instrument QA. In the Fall of 2020 compost will be applied to a portion of the tower's footprint, so that the tower can monitor the longterm effect of compost to a grazed grasslands' GHG and water budgets. Compost will be applied at a rate of 6.35 Mg/acre (wet weight). See More Show Less
Acknowledgment:	—

US-CGG: Concord Grazed Grassland

US-CGG: Concord Grazed Grassland

DOI(s) for citing US-CGG data

Publication(s) for citing site characterization

Acknowledgments

Resources

US-CGG: Concord Grazed Grassland

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US-CGG: Concord Grazed Grassland

Site Picture for US-CGG

Site picture for US-CGG

Site Picture for US-CGG

US-CGG: Concord Grazed Grassland

US-CGG: Concord Grazed Grassland

BADM for This Site

US-CGG: Concord Grazed Grassland

No wind rose data is available at this time.