Wageningen University
& ICOS Netherlands


Ecoregion Flux Time Series
 
Region    
  

Time series of the exchange calculated with CarbonTracker Europe aggregated over specific ecoregions. The title reflects aggregates (denoted by the regions in brackets) areas defined in the documentation and are shown on this map. The boxes show the annual balance of biospheric and oceanic carbon exchange, as well as carbon release by fossil fuel burning and fires. The vertical lines show the one-sigma uncertainty (68% confidence interval) after the assimilation. These are calculated from the posterior covariance matrices, disregarding its temporal structure. All units are TgC/yr.
The labels denote:

Forests/Wooded:

  • Ecosystem 1 (Conifer Forest)
  • Ecosystem 2 (Broadleaf Forest: temperate, subtropical drought)
  • Ecosystem 3 (Mixed Forest: conifer/broadleaf; so. Boreal)
  • Ecosystem 5 (Tropical/subtr. Forest: montane)
  • Ecosystem 8 (Field/Woods complex &/or Savanna, tallgrass)
  • Ecosystem 10 (Forest/Field; Dry Evergreen broadleaf woods )

Crops/Agriculture:

  • Ecosystem 14 (Crop/Settlement (irrigated or not) )

Grass/Shrubs:

  • Ecosystem 4 (Grassland +/- Shrub or Tree)
  • Ecosystem 6 (Scrub +/- Woodland &/or fields (evergreen/decid.) )
  • Ecosystem 13 (Shrub/Tree: succulent/thorn )

Tundra/Taiga (= Tundra, Taiga, and Steppe):

  • Ecosystem 7 (Semidesert shrub/steppe; Tundra (polar, alpine))
  • Ecosystem 9 (Northern Boreal Taiga woodland/tundra)
  • Ecosystem 16 (Wooded Tundra Margin; Heath/moorland)

The table summarizes averages with uncertainty of the data displayed in the figure. The total flux is the sum of the components in the table. Note that fossil fuel emissions can occur over any terrestrial land region, including non-optimized regions such as ice, polar deserts, and inland seas.

Results Summary (all units TgC/yr)
YearFirst Guess FluxEstimated FluxFire EmissionFossil EmissionTotal Flux
2001 -64 ± 669 -194 ± 490 10 744 561 ± 490
2002 -110 ± 672 -260 ± 466 14 733 487 ± 466
2003 -59 ± 644 60 ± 421 5 753 818 ± 421
2004 -10 ± 661 -219 ± 395 5 754 541 ± 395
2005 -125 ± 654 -344 ± 358 8 760 424 ± 358
2006 -57 ± 689 -227 ± 372 7 774 554 ± 372
2007 -112 ± 702 -150 ± 322 9 762 621 ± 322
2008 -9 ± 692 -333 ± 329 11 766 444 ± 329
2009 -137 ± 684 -193 ± 291 14 701 523 ± 291
2010 -107 ± 674 145 ± 257 16 727 889 ± 257
2011 -108 ± 696 -285 ± 291 5 721 442 ± 291
2012 -75 ± 708 -80 ± 267 8 714 642 ± 267
2013 -123 ± 728 -192 ± 264 4 695 508 ± 264
2014 -154 ± 718 -366 ± 296 8 660 302 ± 296
2015 -75 ± 697 -115 ± 267 7 650 542 ± 267
2016 -131 ± 704 -139 ± 261 5 648 514 ± 261
2017 30 ± 661 83 ± 393 9 514 606 ± 393
mean -84 ± 686 -165 ± 345 9 710 554 ± 345




Copyright Wageningen University, October 2018