About AmeriFlux Core Sites

What are the AmeriFlux Core Sites?

2015 map of AmeriFlux core sites and active AmeriFlux sites
AmeriFlux Core Sites are flux towers whose managing PIs and staff have agreed to deliver timely, high quality, continuous data to the AmeriFlux database. They receive operations and instrumentation support from the AmeriFlux Management Project (AMP).  A primary goal for AMP is to ensure high quality data collection from these sites, which represent a broad range of ecosystems and locations in the continental United States.  AMP receives funding support for the AmeriFlux core sites from Department of Energy, Office of Science, Terrestrial Ecosystem Science Program.

Currently 44 AMP-supported core sites exist, in 12 clusters, and 2 individual sites. Two more sites (US-MOz and US-ARM) have voluntarily agreed to the same data quality and delivery standards as the AMP-supported core sites, but do not receive AMP funding. The original sites were selected after careful review in 2012-2013, based on ecosystem representation, length of prior data record, quality of existing data, and established ability of site PIs to provide continuity in site management.

Note: A Core Site Cluster is a case where support for one primary core site has been leveraged to support several sites. For example, support for a data manager assures timely data review and processing for several sites.

Santa Rita Mesquite - US-SRM

Santa Rita Mesquite – US-SRM. Credit Russ Scott, USDA-ARS.

Current Core Sites with Contacts

*Signifies this is the “primary” site for that core site cluster.

Harvard Forest

  1. US-Ha1* • Harvard Forest EMS Tower (HFR1): deciduous broadleaf forest
  2. US-Ha2 • Harvard Forest Hemlock Site: evergreen needleleaf forest: primarily hemlock

Bill Munger, Harvard University, jwmunger@seas.harvard.edu


Morgan Monroe State Forest (MMSF)

  1. US-MMS* • Morgan Monroe State Forest: deciduous broadleaf forest

Kim Novick, Indiana University, knovick@indiana.edu; Rich Phillips, rpp6@indiana.edu


ChEAS (Chequamegon Ecosystem-Atmosphere Study)

  1. US-Los* • Lost Creek: shrubby wetland (longest running wetland flux site in US)
  2. US-Syv • Sylvania Wilderness Area (shared with UMBS cluster): old-growth (350 y) mature northern hardwood forest
  3. US-PFa • Park Falls/WLEF (very tall tower): shrub/forest wetland, mixed conifer/hardwood (50 y)
  4. US-WCr • Willow Creek (mature hardwood): mature northern hardwood forest

Ankur Desai, University of Wisconsin, desai@aos.wisc.edu; Ken Davis, Pennsylvania State University, kjd10@psu.edu


New Mexico Elevation Gradient (NMEG)

  1. US-Mpj* • Pinon-juniper site (Mountainair): pinyon-juniper forest 2100 m
  2. US-Wjs • Juniper savanna site (Willard): open shrubland, 1925 m
  3. US-Vcp • Valles Caldera National Preserve: evergreen needleleaf forest (Ponderosa pine), 2542 m
  4. US-Vcm • Valles Caldera National Preserve: evergreen needleleaf (mixed conifer), 3000 m; wildfire in 2012
  5. US-Ses • Sevilleta (LTER desert shrubland): open shrubland, 1593 m
  6. US-Seg • Sevilleta (LTER desert grassland): desert grassland, 1622m

Marcy Litvak, University of New Mexico, mlitvak@unm.edu


Santa Rita/Walnut Gulch

  1. US-SRM* • Santa Rita Mesquite: semi-desert grassland
  2. US-Wkg • Walnut Gulch Kendall Grasslands: desert grassland, grazing
  3. US-Whs • Walnut Gulch Lucky Hills Shrub: Chihuahuan Desert shrubland
  4. US-SRG • Santa Rita Grassland: semi-desert grassland

Russell Scott, USDA-ARS Western Area, Russ.Scott@ars.usda.gov


Tonzi/Vaira/Delta

  1. US-Ton* • Tonzi Ranch: Sierra Foothills—oak savanna, grazed
  2. US-Var • Vaira Ranch • Ione: Sierra Foothills—oak savanna, grazed
  3. US-Sne • Sherman Island (see Notes): Sacramento Delta—restored wetland Spring 2016
  4. US-Myb • Mayberry Wetland: Sacramento Delta—wetland restored 2010
  5. US-Twt • Twitchell Island: Sacramento Delta—rice paddy
  6. US-Tw1 • Twitchell Isl (wet west): Sacramento Delta—wetland restored 1997
  7. US-Tw3 • Twitchell Isl (alfalfa): Sacramento Delta—alfalfa, irrigated
  8. US-Tw4 • Twitchell Isl (wet east) SEE NOTES: Sacramento Delta —wetland restored 2014

Notes: Tw2 was shut down Jan 2015. Tw4 in same location took over after site was restored to wetland. Snd closed Apr 2015 (DWR restored as wetland). Flux equipment deployed in same location Spring 2016; tentative site ID US-Sne (pending AmeriFlux registration)

Dennis Baldocchi, UC Berkeley, baldocchi@berkeley.edu


North Carolina Loblolly Pine

  1. US-NC2* • NC Loblolly Plantation: SE Loblolly Pine, managed
  2. US-NC3 • NC Loblolly: SE Loblolly Pine, managed
  3. US-NC4 • Alligator River National Wildlife Refuge: coastal forested wetlands experiencing rising water level

Asko Noormets, North Carolina State University, anoorme@ncsu.edu; Jiquan Chen, Michigan State University, jqchen@msu.edu


Niwot Ridge

  1. US-NR1* • Niwot Ridge Forest (LTER NWT1): subalpine conifer forest

Peter Blanken, University of Colorado, blanken@colorado.edu; David Bowling, University of Utah, david.bowling@utah.edu; Russ Monson, University of Arizona, russmonson@email.arizona.edu
Ohio State U (Virgina Common Wealth, U Michigan)


University of Michigan Biological Station (UMBS)

  1. US-UMB • University of Michigan Biological Station: deciduous broadleaf forest
  2. US-UMd • UMBS Disturbance: deciduous broadleaf forest, succession experiment
  3. US-Syv • Sylvania Wilderness Area (shared with ChEAS cluster): old-growth (350 y) mature northern hardwood forest

Peter Curtis, Ohio State University, curtis.7@osu.edu; Gil Bohrer, bohrer.17@osu.edu; Christopher Gough, Virginia Commonwealth University, cmgough@vcu.edu


Konza Prairie

  1. US-Kon* • Konza Prairie LTER: grazed prairie, annual burn
  2. US-KFS • Kansas Field Station: grassland since 2007
  3. US-KFB • Konza Prairie LTER: prairie, woody encroachment, 4-y burn
  4. US-KLS • Kansas Land Institute: prairie

Nathaniel Brunsell, Kansas State University, brunsell@ku.edu


Rosemount

  1. US-Ro4 • Rosemount: restored prairie. New late 2015. Replaces Ro3. See Note
  2. US-Ro1 • Rosemount: corn/soybean rotation
  3. US-Ro2 • Rosemount: corn/soybean/winter cover rotation with minimal tillage

Note: Ro3—corn/soybean in permanent kura clover. Retired late 2015.

John Baker, USDA-ARS Midwest Area, john.baker@ars.usda.gov; Tim Griffis, University of Minnesota), tgriffis@umn.edu


Howland Forest

  1. US-Ho1* • Howland Forest (main tower): since 1996
  2. US-Ho2 • Howland Forest (west tower): since 1999
  3. US-Ho3 • Howland Forest (harvest site): since 2003

David Hollinger, USDA Forest Service Northern Area, dhollinger@fs.fed.us


Metolius Pine

  1. US-Me2* • Metolius-intermediate aged Ponderosa pine: evergreen needleleaf forest, 64 y
  2. US-Me6 • Metolius young pine burn: evergreen needleleaf forest, 20 y, post-fire

Beverly Law, Oregon State University, bev.law@oregonstate.edu


Mead

  1. US-Ne1* • Irrigated continuous maize
  2. US-Ne2 • Irrigated maize/soybean, no-till
  3. US-Ne3 • Rainfall maize/soybean, no-till

Andrew Suyker, University of Nebraska-Lincoln, asuyker@unl.edu