US-EKP: Elkhorn Slough Porter Marsh

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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-EKP data

Data Use Policy: AmeriFlux CC-BY-4.0 License

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AmeriFlux BASE: https://doi.org/10.17190/AMF/2479625
Citation: Adina Paytan (2025), AmeriFlux BASE US-EKP Elkhorn Slough Porter Marsh, Ver. 2-5, AmeriFlux AMP, (Dataset). https://doi.org/10.17190/AMF/2479625

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US-EKP: Elkhorn Slough Porter Marsh

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US-EKP: Elkhorn Slough Porter Marsh

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Search Images for this Site Images found : 3

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Porter Marsh Summer Dodder
**Description:**
This image depicts the bloom of a parasitic plant called dodder during the summer season of Porter Marsh
Keywords: —
**Credit:** Jacqueline (J.J.) Jabuka
**Site ID:** US-EKP
**Location:** California, United States
**Image Date:** 2023/07/04
**Journal:** —
**Article Title:** —
**Copyright Permissions:** Contact Owner
**Right to Use:** Request for permission

View in Original Size
To download, right-click photo (Mac: control-click) and choose Save Image As

Porter Marsh Flood Event
**Description:**
Taken March 31st, 2025 by J.J. Jabuka after heavy rain. During high precipitation wet seasons, Porter marsh can flood up to 8 feet above the surface. This was a particularly wet season, and after a series of atmospheric river events, the tower's instruments fell below water level twice. This day, the water level drained enough for the team to make a visit to assess damages and reinstall instruments after the second flooding event.
Keywords: —
**Credit:** Jacqueline (J.J.) Jabuka
**Site ID:** US-EKP
**Location:** California, United States
**Image Date:** 2023/03/31
**Journal:** —
**Article Title:** —
**Copyright Permissions:** Contact owner.
**Right to Use:** Request for permission

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To download, right-click photo (Mac: control-click) and choose Save Image As

Porter Marsh Dormant Pickleweed
**Description:**
This photo depicts the seasonal color of Porter Marsh, a brackish coastal salt marsh, when the dominant vegetation pickleweed is dormant for the winter.
Keywords: —
**Credit:** Jacqueline (J.J.) Jabuka
**Site ID:** US-EKP
**Location:**
**Image Date:** 2023/12/13
**Journal:** —
**Article Title:** —
**Copyright Permissions:** Contact owner.
**Right to Use:** Request for permission

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US-EKP: Elkhorn Slough Porter Marsh

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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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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

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

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NIRv Near-Infrared Reflectance of vegetation

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DSR: Surface downward shortwave radiation

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LST: Land Surface Temperature

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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-EKP: Elkhorn Slough Porter Marsh

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Search Publications for this Site Publications Found: 0

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US-EKP: Elkhorn Slough Porter Marsh

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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-EKP: Elkhorn Slough Porter Marsh

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Tower_team:
PI:	Adina Paytan apaytan@ucsc.edu - University of California, Santa Cruz
FluxContact:	Jacqueline (J.J.) Jabuka jjabuka@ucsc.edu - University of California, Santa Cruz
Technician:	Lucas Ognibene logniben@ucsc.edu - University of California, Santa Cruz
Lat, Long:	36.8558, -121.7488
Elevation(m):	—
Network Affiliations:	AmeriFlux
Vegetation IGBP:	WET (Permanent Wetlands: Lands with a permanent mixture of water and herbaceous or woody vegetation that cover extensive areas. The vegetation can be present in either salt, brackish, or fresh water)
Climate Koeppen:	Csb (Mediterranean: mild with dry, warm summer)
Mean Annual Temp (°C):	10
Mean Annual Precip. (mm):	894
Flux Species Measured:	CO2, CH4, H2O
Years Data Collected:	2022 - Present
Years Data Available:	AmeriFlux BASE 2022 - 2025 Data Citation
Data Use Policy:	AmeriFlux CC-BY-4.0 Policy¹
Description:	Tidally restricted amd diked salt marsh. Berm and Islands with picklweek, cut by mudlats and an ephemeral creek.
URL:	—
Research Topics:	Greenhouse gas emissions from tidally restricted salt marshes
Acknowledgment:	—

US-EKP: Elkhorn Slough Porter Marsh

US-EKP: Elkhorn Slough Porter Marsh

DOI(s) for citing US-EKP data

Publication(s) for citing site characterization

Acknowledgments

Resources

US-EKP: Elkhorn Slough Porter Marsh

Not Found

US-EKP: Elkhorn Slough Porter Marsh

Porter Marsh Summer Dodder

Porter Marsh Flood Event

Porter Marsh Dormant Pickleweed

US-EKP: Elkhorn Slough Porter Marsh

US-EKP: Elkhorn Slough Porter Marsh

BADM for This Site

US-EKP: Elkhorn Slough Porter Marsh

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