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 15, 2024 5:10PM 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 Data| Years | 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 | 58 |
| 2003 | 66 |
| 2004 | 86 |
| 2005 | 96 |
| 2006 | 101 |
| 2007 | 119 |
| 2008 | 120 |
| 2009 | 123 |
| 2011 | 126 |
| 2012 | 127 |
| 2013 | 169 |
| 2014 | 209 |
| 2015 | 234 |
| 2016 | 261 |
| 2017 | 300 |
| 2018 | 385 |
| 2019 | 471 |
| 2020 | 521 |
| 2021 | 558 |
| 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 Data| IGBP | 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 17660
- New AmeriFlux members in the past year 2793
Downloads of AmeriFlux BASE flux data since November, 2015
(from ameriflux.lbl.gov)
- Total unique downloads 38862
- AmeriFlux sites whose data have been downloaded 492
- Users who have downloaded AmeriFlux BASE flux data 6413
- How do people use the AmeriFlux BASE flux data?
Show Chart Data| Intended Use | Use Count | | Education (Teacher or Student) | 8650 |
| Other | 2135 |
| Research - Land model/Earth system model | 9506 |
| Research - Multi-site synthesis | 4789 |
| Research - Other | 5349 |
| Research - Remote sensing | 8433 |
Downloads of AmeriFlux FLUXNET data since September, 2021
(from ameriflux.lbl.gov)
- Total unique downloads 5980
- AmeriFlux sites whose data have been downloaded 196
- Users who have downloaded AmeriFlux FLUXNET data 2117
- How do people use the AmeriFlux FLUXNET data?
Show Chart Data| Intended Use | Use Count | | Other | 439 |
| Research - Other | 480 |
| Research - Remote sensing | 1635 |
| Education (Teacher or Student) | 1502 |
| Research - Multi-site synthesis | 991 |
| Research - Land model/Earth system model | 933 |
Downloads of FLUXNET2015 data since January, 2016
(from fluxnet.org)
- Total unique downloads 34559
- AmeriFlux sites whose data have been downloaded 86
- Users who have downloaded FLUXNET2015 data for AmeriFlux sites 7338
- How do people use the FLUXNET2015 data?
Show Chart Data| Intended Use | Use Count | | Education (Teacher or Student) | 7422 |
| Other | 3534 |
| Research - Land model/Earth system model | 6843 |
| Research - Multi-site synthesis | 5312 |
| Research - Other | 2420 |
| Research - Remote sensing | 9028 |
AmeriFlux Data & Data Processing
- AmeriFlux BASE Site Years Availability
Show Chart Data| Years | 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 | 41 |
- AmeriFlux BASE Site Years Available by IGBP
Show Chart Data| Years | 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 |
