WP3 WP6 USE CASEDATA MODEL FUSIONUSING PHENOLOGICAL DATA TO INFORM PRODUCTIVITY MODEL

Andy Fox, David Moore, Jesus Marco de Lucas, Jeff Taylor, and many others.

Hank Loescher | National Ecological Observatory Network (NEON)

Director Strategic Projects | CEO Office

Earth System Models

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• Uncertainty in carbon cycle feedbacks stems from structural, parameter, initial conditions and boundary conditions uncertainties

• Data provide both detailed site-based process information and spatial measures of pattern and process that can be integrated into an earth system model

• What would be the essential components of such a system?

– Datasets for evaluation – common measurements, post-processed and saved in common formats served from a CI optimized for interaction with ESMs

– Data products commensurate with model grid cell scales (i.e. FLUXNET GPP product)

– Long-term and accurate to observe trends beyond inter-annual variation

– A interoperable (and common?) model capable of simulating coupled land, ocean, river and atmospheric processes

– A data assimilation system capable of ingesting observations (in real time) to improve model performance

Poor Performance related to Spring and Autumn

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Approximately 25 different land surface / ecosystem models

Spring

Autumn

Bias in Gross PrimaryProductivity gC m-2 yr-1

Richardson et al 2012 Global Change Biology

Standardized protocols … limited by the availability of data in appropriate formats

Daily timeseries for measures of crop productivity

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remote sensing can be used to detect “green up

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Workflow and approach

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Planned Activities

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Formal Partnership with National Phenological NetworkLifewatch Visiting Scientist(s) – NPN HQ (U Arizona)

– NEON HQ

Planned DeliverablesSurvey and integrate – Observations (notebooks), Spatially explicit

– Hemispherical Photographs, Spatially explicit– Phenological Camera, Temporally explicit

Data fusion (assimilation) – Community Land Model

Proof of concept – Sites with contrasting phenology– Daily estimates– Annual Time series (?)– Validation activities (?)

The National Ecological Observatory Network is a project sponsored by the National Science Foundation and managed under cooperative agreement by NEON Inc.