Multiscale assessment of North American terrestrial carbon balance
Abstract 2) exchange between the atmosphere and terrestrial biosphere. Previous comparisons have shown varying levels of agreement between bottom-up and top-down approaches, but they have almost exclusively focused on large, aggregated scales (e.g., global or continental), providing limited insights into reasons for the mismatches. Here we explore how consistency, defined as the spread in net ecosystem exchange (NEE) estimates within an ensemble of TBMs or inversions, varies with at finer spatial scales ranging from 1 ∘ × 1 ∘ 2 drawdowns or enhancements. We find that TBMs produce more consistent estimates of NEE for most regions and at most scales relative to inversions. Filtering models using atmospheric CO2 metrics causes ensemble spread to decrease substantially for TBMs, but not for inversions. This suggests that ensemble spread is likely not a reliable measure of the uncertainty associated with the North American carbon balance at any spatial scale. Promisingly, applying atmospheric CO2 metrics leads to a set of models with converging flux estimates across TBMs and inversions. Overall, we show that multiscale assessment of the agreement between bottom-up and top-down NEE estimates, aided by regional-scale observational constraints is a promising path towards identifying fine-scale sources of uncertainty and improving both ensemble consistency and accuracy. These findings help refine our understanding of biospheric carbon balance, particularly at scales relevant for informing regional carbon-climate feedbacks.
- Location
-
Deutsche Nationalbibliothek Frankfurt am Main
- Extent
-
Online-Ressource
- Language
-
Englisch
- Bibliographic citation
-
Multiscale assessment of North American terrestrial carbon balance ; volume:21 ; number:3 ; year:2024 ; pages:869-891 ; extent:23
Biogeosciences ; 21, Heft 3 (2024), 869-891 (gesamt 23)
- Creator
- DOI
-
10.5194/bg-21-869-2024
- URN
-
urn:nbn:de:101:1-2024022203302876682875
- Rights
-
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
-
14.08.2025, 11:00 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Foster, Kelsey T.
- Sun, Wu
- Shiga, Yoichi P.
- Mao, Jiafu
- Michalak, Anna M.
Other Objects (12)
Multiscale assessment of North American terrestrial carbon balance
Terrestrial vegetation redistribution and carbon balance under climate change Carbon Balance and Management
Variability and recent trends in the African terrestrial carbon balance
The North American Carbon Program Multi-scale Synthesis and Terrestrial Model Intercomparison Project – Part 2: Environmental driver data
The North American Carbon Program Multi-Scale Synthesis and Terrestrial Model Intercomparison Project – Part 1: Overview and experimental design
The role of bioenergy production in the terrestrial carbon cycle and energy balance
Process based simulation of the European terrestrial biosphere : an evaluation of present-day and future terrestrial carbon balance estimates and their uncertainty
Process based simulation of the European terrestrial biosphere : an evaluation of present-day and future terrestrial carbon balance estimates and their uncertainty
Terrestrial Carbon Observing System - Siberia (TCOS)
ASSESSING TERRESTRIAL MMS 3D DATA FOR OUTDOOR MULTI-SCALE MODELLING
Polarization and multiscale structural balance in signed networks
Carbon balance and management
Multiscale assessment of North American terrestrial carbon balance
Terrestrial vegetation redistribution and carbon balance under climate change Carbon Balance and Management
Variability and recent trends in the African terrestrial carbon balance
The North American Carbon Program Multi-scale Synthesis and Terrestrial Model Intercomparison Project – Part 2: Environmental driver data
The North American Carbon Program Multi-Scale Synthesis and Terrestrial Model Intercomparison Project – Part 1: Overview and experimental design
The role of bioenergy production in the terrestrial carbon cycle and energy balance
Process based simulation of the European terrestrial biosphere : an evaluation of present-day and future terrestrial carbon balance estimates and their uncertainty
Process based simulation of the European terrestrial biosphere : an evaluation of present-day and future terrestrial carbon balance estimates and their uncertainty
Terrestrial Carbon Observing System - Siberia (TCOS)
ASSESSING TERRESTRIAL MMS 3D DATA FOR OUTDOOR MULTI-SCALE MODELLING
Polarization and multiscale structural balance in signed networks
Carbon balance and management
Multiscale assessment of North American terrestrial carbon balance
Terrestrial vegetation redistribution and carbon balance under climate change Carbon Balance and Management
Variability and recent trends in the African terrestrial carbon balance
The North American Carbon Program Multi-scale Synthesis and Terrestrial Model Intercomparison Project – Part 2: Environmental driver data
The North American Carbon Program Multi-Scale Synthesis and Terrestrial Model Intercomparison Project – Part 1: Overview and experimental design
The role of bioenergy production in the terrestrial carbon cycle and energy balance
Process based simulation of the European terrestrial biosphere : an evaluation of present-day and future terrestrial carbon balance estimates and their uncertainty
Process based simulation of the European terrestrial biosphere : an evaluation of present-day and future terrestrial carbon balance estimates and their uncertainty
Terrestrial Carbon Observing System - Siberia (TCOS)
ASSESSING TERRESTRIAL MMS 3D DATA FOR OUTDOOR MULTI-SCALE MODELLING
Polarization and multiscale structural balance in signed networks