The Network-at-a-Glance page displays summary statistics about the AmeriFlux network, its flux tower sites, data sets, and user community. This provides a useful snapshot to PIs, Program Managers, data users, and others.
Last update: Jul 26, 2024 4:30PM PST
Sites
- Sites registered in AmeriFlux 666
- Sites that have downloadable flux data 492
- Site years of downloadable AmeriFlux flux data 3435
- Number of AmeriFlux Core Sites 44
- Number of Registered AmeriFlux Sites by Year
Show Chart DataYears | Number of AmeriFlux Sites | 1991 | 1 |
1993 | 2 |
1994 | 3 |
1995 | 4 |
1996 | 5 |
1997 | 11 |
1998 | 14 |
1999 | 22 |
2000 | 27 |
2001 | 44 |
2002 | 59 |
2003 | 67 |
2004 | 87 |
2005 | 97 |
2006 | 102 |
2007 | 120 |
2008 | 121 |
2009 | 124 |
2011 | 127 |
2012 | 128 |
2013 | 170 |
2014 | 210 |
2015 | 235 |
2016 | 262 |
2017 | 301 |
2018 | 386 |
2019 | 472 |
2020 | 522 |
2021 | 559 |
2022 | 589 |
2023 | 636 |
2024 | 666 |
- Five most recent sites to join the Network
Site ID | Join Date | US-BFS | 2024/07/12 |
US-UTE | 2024/07/01 |
US-CN1 | 2024/06/14 |
US-UTJ | 2024/06/12 |
US-UTP | 2024/06/12 |
Geography
- Sites by country
Country | Site Count | Argentina | 7 |
Brazil | 17 |
Canada | 71 |
Chile | 3 |
Colombia | 2 |
Costa Rica | 5 |
Mexico | 13 |
Panama | 2 |
Peru | 5 |
Puerto Rico | 2 |
USA | 539 |
- Sites in each IGBP landcover
Show Chart DataIGBP | Site Count | Barren Sparse Vegetation | 8 |
Closed Shrublands | 13 |
Cropland/Natural Vegetation Mosaics | 13 |
Croplands | 137 |
Deciduous Broadleaf Forests | 60 |
Deciduous Needleleaf Forests | 1 |
Evergreen Broadleaf Forests | 18 |
Evergreen Needleleaf Forests | 103 |
Grasslands | 89 |
Mixed Forests | 17 |
Open Shrublands | 41 |
Permanent Wetlands | 116 |
Savannas | 8 |
Snow and Ice | 1 |
Urban and Built-Up Lands | 16 |
Water Bodies | 12 |
Woody Savannas | 13 |
Registered AmeriFlux Members
- AmeriFlux members 17730
- New AmeriFlux members in the past year 2790
Downloads of AmeriFlux BASE flux data since November, 2015
(from ameriflux.lbl.gov)
- Total unique downloads 38997
- AmeriFlux sites whose data have been downloaded 492
- Users who have downloaded AmeriFlux BASE flux data 6427
- How do people use the AmeriFlux BASE flux data?
Show Chart DataIntended Use | Use Count | Education (Teacher or Student) | 8685 |
Other | 2145 |
Research - Land model/Earth system model | 9536 |
Research - Multi-site synthesis | 4814 |
Research - Other | 5361 |
Research - Remote sensing | 8456 |
Downloads of AmeriFlux FLUXNET data since September, 2021
(from ameriflux.lbl.gov)
- Total unique downloads 6110
- AmeriFlux sites whose data have been downloaded 196
- Users who have downloaded AmeriFlux FLUXNET data 2148
- How do people use the AmeriFlux FLUXNET data?
Show Chart DataIntended Use | Use Count | Other | 445 |
Research - Other | 493 |
Research - Remote sensing | 1685 |
Education (Teacher or Student) | 1514 |
Research - Multi-site synthesis | 1024 |
Research - Land model/Earth system model | 949 |
Downloads of FLUXNET2015 data since January, 2016
(from fluxnet.org)
- Total unique downloads 34691
- AmeriFlux sites whose data have been downloaded 86
- Users who have downloaded FLUXNET2015 data for AmeriFlux sites 7375
- How do people use the FLUXNET2015 data?
Show Chart DataIntended Use | Use Count | Education (Teacher or Student) | 7436 |
Other | 3563 |
Research - Land model/Earth system model | 6856 |
Research - Multi-site synthesis | 5349 |
Research - Other | 2431 |
Research - Remote sensing | 9056 |
AmeriFlux Data & Data Processing
- AmeriFlux BASE Site Years Availability
Show Chart DataYears | Published | Pending QA/QC | 1991 | 1 | 0 |
1992 | 1 | 0 |
1993 | 1 | 0 |
1994 | 5 | 0 |
1995 | 7 | 0 |
1996 | 12 | 0 |
1997 | 19 | 0 |
1998 | 25 | 2 |
1999 | 35 | 3 |
2000 | 42 | 3 |
2001 | 61 | 3 |
2002 | 83 | 4 |
2003 | 92 | 4 |
2004 | 114 | 4 |
2005 | 124 | 3 |
2006 | 117 | 5 |
2007 | 122 | 9 |
2008 | 132 | 11 |
2009 | 137 | 13 |
2010 | 138 | 15 |
2011 | 139 | 14 |
2012 | 140 | 19 |
2013 | 145 | 27 |
2014 | 156 | 23 |
2015 | 162 | 31 |
2016 | 170 | 35 |
2017 | 207 | 28 |
2018 | 207 | 31 |
2019 | 222 | 20 |
2020 | 191 | 23 |
2021 | 186 | 25 |
2022 | 160 | 27 |
2023 | 75 | 78 |
2024 | 7 | 44 |
- AmeriFlux BASE Site Years Available by IGBP
Show Chart DataYears | BSV | CRO | CSH | CVM | DBF | DNF | EBF | ENF | GRA | MF | OSH | SAV | SNO | URB | WAT | WET | WSA | 1991 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
1992 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
1993 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
1994 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 |
1995 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0 |
1996 | 0 | 1 | 0 | 0 | 4 | 0 | 0 | 5 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
1997 | 0 | 2 | 2 | 0 | 4 | 0 | 1 | 7 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
1998 | 0 | 2 | 2 | 0 | 5 | 0 | 1 | 10 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
1999 | 0 | 2 | 3 | 0 | 6 | 0 | 1 | 16 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 3 | 0 |
2000 | 0 | 2 | 3 | 0 | 8 | 0 | 1 | 18 | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 4 | 0 |
2001 | 0 | 4 | 3 | 0 | 9 | 0 | 1 | 28 | 6 | 3 | 3 | 0 | 0 | 0 | 0 | 3 | 1 |
2002 | 0 | 4 | 3 | 0 | 13 | 0 | 2 | 39 | 9 | 3 | 5 | 1 | 0 | 0 | 0 | 3 | 1 |
2003 | 0 | 5 | 4 | 0 | 13 | 0 | 2 | 43 | 9 | 4 | 5 | 1 | 0 | 0 | 0 | 5 | 1 |
2004 | 0 | 8 | 6 | 0 | 16 | 0 | 3 | 46 | 15 | 5 | 5 | 1 | 0 | 0 | 0 | 7 | 2 |
2005 | 0 | 11 | 7 | 0 | 16 | 0 | 2 | 48 | 18 | 5 | 6 | 1 | 0 | 0 | 0 | 7 | 3 |
2006 | 1 | 11 | 7 | 0 | 15 | 0 | 2 | 39 | 20 | 5 | 6 | 1 | 0 | 0 | 0 | 7 | 3 |
2007 | 1 | 12 | 3 | 0 | 16 | 0 | 2 | 39 | 22 | 6 | 9 | 2 | 0 | 0 | 0 | 6 | 4 |
2008 | 1 | 15 | 2 | 0 | 16 | 0 | 2 | 39 | 22 | 6 | 14 | 1 | 0 | 0 | 1 | 8 | 5 |
2009 | 1 | 19 | 2 | 0 | 14 | 0 | 2 | 37 | 27 | 5 | 12 | 4 | 0 | 0 | 1 | 9 | 4 |
2010 | 1 | 18 | 2 | 0 | 14 | 0 | 2 | 40 | 25 | 5 | 13 | 4 | 0 | 0 | 1 | 9 | 4 |
2011 | 3 | 22 | 2 | 0 | 13 | 0 | 2 | 28 | 22 | 5 | 14 | 4 | 0 | 0 | 1 | 18 | 5 |
2012 | 3 | 23 | 2 | 0 | 14 | 0 | 0 | 27 | 23 | 5 | 14 | 4 | 1 | 0 | 2 | 17 | 5 |
2013 | 3 | 27 | 1 | 0 | 14 | 0 | 0 | 28 | 20 | 5 | 14 | 4 | 1 | 1 | 3 | 19 | 5 |
2014 | 4 | 26 | 4 | 0 | 13 | 1 | 2 | 27 | 21 | 5 | 16 | 4 | 1 | 0 | 3 | 24 | 5 |
2015 | 3 | 30 | 4 | 4 | 14 | 1 | 2 | 27 | 22 | 4 | 14 | 4 | 1 | 0 | 2 | 25 | 5 |
2016 | 3 | 30 | 4 | 4 | 20 | 0 | 2 | 27 | 27 | 3 | 13 | 4 | 1 | 0 | 3 | 24 | 5 |
2017 | 3 | 31 | 4 | 6 | 31 | 0 | 2 | 32 | 33 | 5 | 18 | 4 | 1 | 2 | 4 | 26 | 5 |
2018 | 2 | 29 | 3 | 5 | 25 | 0 | 3 | 34 | 36 | 6 | 17 | 3 | 1 | 4 | 4 | 31 | 4 |
2019 | 2 | 28 | 3 | 6 | 34 | 0 | 3 | 38 | 35 | 6 | 16 | 3 | 1 | 5 | 4 | 34 | 4 |
2020 | 2 | 29 | 3 | 4 | 24 | 0 | 3 | 33 | 29 | 6 | 13 | 3 | 1 | 4 | 4 | 29 | 4 |
2021 | 2 | 34 | 4 | 3 | 23 | 0 | 3 | 31 | 26 | 7 | 10 | 2 | 1 | 5 | 2 | 29 | 4 |
2022 | 1 | 21 | 4 | 3 | 20 | 0 | 3 | 30 | 21 | 6 | 9 | 2 | 1 | 3 | 2 | 31 | 3 |
2023 | 1 | 20 | 1 | 2 | 6 | 0 | 0 | 12 | 8 | 3 | 2 | 1 | 1 | 3 | 0 | 11 | 4 |
2024 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 1 |