How does it all work?

How does it all work?

Synthesis of Arctic System Science

Discover, clarify, and improve our understanding of linkages, interactions, and feedbacks among two or more components of the arctic system.

SASS - Synthesis of Arctic System Science

1. Incorporate elements from the existing arctic data, information, and models• build on past research• integrate existing information.

2. Focus on interdisciplinary, cross-cutting questions • improve understanding of how the system components function and interact.• explore linkages between Arctic and global system.

3. Demonstrate clear relevance to the entire arctic system.• address a range of space and time scales• focus on system at a pan-Arctic scale

4. Archive data and products into the ARCSS data system• identify repository• include data and metadata

5. Coordinate Synthesis Efforts • within a project• between projects• across ARCSS activities

SASS 1: 9 projects started 2005 SASS 2: 8 projects started 2006

ARCSS – synthesis workshops

• Two weeklong interdisciplinary synthesis workshops.• in summer of 2003 and 2004• focused on the changing Arctic system

• Conclusions• The Arctic system is moving toward a new state. • A state with dramatically less permanent ice. • Few negative feedbacks between components.

Synthesis• A Synthesis of the Last 2000 Years of Climatic Variability from Arctic Lakes: ARCSS "2 kyr" Project• Freshwater Integration (FWI) Synthesis• Study of the Northern Alaska Coastal System (SNACS)• Human Dimensions in ARCSS Synthesis• Shelf-Basin Interactions (SBI) Synthesis

Look for connections


• Greening of the Arctic - Synthesis and Models to Examine Circumpolar Vegetation Change• A Heat Budget Analysis of the Arctic Climate System• Synthesis of Arctic System Carbon Cycle Research Through Model-Data Fusion Studies• Humans and Hydrology at High Latitudes• Synthesis of Rapid Meltwater and Ice Discharge Changes: Large Forcings from Ice with Global Impacts• Sunlight and the Arctic Atmosphere-Ice-Ocean System• Heterogeneity and Resilience of Human-Rangifer Systems: A Circumpolar Social-Ecological Synthesis• Arctic Surface Air Temperatures for Past 100 Years:Analysis and Reconstruction of Integrated Data Set• Synthesis Modes of covariability Ocean-Ice-Atmos. in Arctic System from Multivariate Century-Scale obs.



• Greening of the Arctic - Synthesis and Models to Examine Circumpolar Vegetation Change• A Heat Budget Analysis of the Arctic Climate System• Synthesis of Arctic System Carbon Cycle Research Through Model-Data Fusion Studies• Humans and Hydrology at High Latitudes• Synthesis of Rapid Meltwater and Ice Discharge Changes: Large Forcings from Ice with Global Impacts• Sunlight and the Arctic Atmosphere-Ice-Ocean System• Heterogeneity and Resilience of Human-Rangifer Systems: A Circumpolar Social-Ecological Synthesis• Arctic Surface Air Temperatures for Past 100 Years:Analysis and Reconstruction of Integrated Data Set• Synthesis Modes of covariability Ocean-Ice-Atmos. in Arctic System from Multivariate Century-Scale obs.

• The Roles of Clouds and their Accomplices in Modulating the Trajectory of the Arctic System • Toward Reanalysis of the Arctic Climate System - Sea Ice and Ocean Reconstruction with Data Assimilation • Producing an Updated Synthesis of the Arctic's Marine Primary Production Regime and Its Controls• The Impact of Changes in Arctic Sea Ice on the Marine Planktonic Ecosystem - Retrospective and Future• Climate Response to Future Changes in Arctic Snow Cover and Sea Ice: from the High-Res. NCAR CCSM3 • The White Arctic: A Snow-Impacts Synthesis for the Terrestrial Arctic• Understanding Change in the Climate and Hydrology of Arctic Land Region: Synthesizing the FWI Results• Synthesis of Sea Ice, Climate, and Human Systems in the Arctic and Subarctic (SYNICE)


Carbon cycle

SunlightHumans and

hydrologyModes of OAIcovariability

Rapid iceand meltwater

discharge

Human-rangifersystems

Surface air temperature

Heat budgetOf the Arctic

What are the linkages?

Greeningof the Arctic

SASS 1 Review

Potential linkages of SASS projects

Atmosphere

Cryosphere

Ocean

Land

Humans


Heat Budget

Arctic Air Temperatures

Ocean-Ice-Atmos Covariability

Human-Rangifer System

Glacier Melt Hydrology and Humans

Carbon Cycle

Greening of the Arctic

Atmosphere

Cryosphere

Ocean

Land

Humans

Sunlilght/Sea-ice


Heat Budget(Serreze et al.)

Arctic Air Temperatures(Rigor et al.)

Ocean-Ice-Atmos Covariability(Miles et al.)

Human-Rangifer System(Kofinas et al.)

Glacier Melt(Fahnstock et al.)

Hydrology and Humans(Lammers et al.)

Carbon Cycle(McGuire et al.)

Greening of the Arctic(Walker et al.)

NDVIphenology

LST

s; snow m

elt

Perennial Sea Ice Distribution; Incident PAR; net solar input

Biom

ass;

LAI; Land

cover

Bio

mas

s/La

nd

cove

r; ET

Atmosphere

Cryosphere

Ocean

Land

Humans

Snow distribution

Sunlilght/Sea-ice(Perovich et al.)

Covar. NDVI; Sea ice; LST;OIA covar.

sea

ice,

SA

T;

OIA

cov

ar.

sea ice; SST;

OIA covar.

OIA

covar.;

incident

solar input

to ocean

Snow depth;

Mag. & duration

Air temperature

Tem

peratures

Global trends; regional patterns P-E

; Run

off

Wate

r to

supp

ort

subs

isten

ce

reso

urce

Snowmelt/

precipitation

Access to resources

Runoff

Incident so

lar; so

lar in

put

to ice &

ocean

Clouds; sea ice

SAT

Clouds; snow

Fres

hwat

er re

leas

e

The “Molecule”

E

H

W C

The highest conceptual level

Time

Synthesize and collaborate

How does the system work?

•What datasets will be built?• What are the variables, spatial and temporal coverage?• Are there common formats?• Shared access and links

• What models will be used?

• What system components will be studied?• What are the linkages?• What key questions can we answer?

• Relax• Don’t worry about structure• Explore beyond your expertise

Have fun!

Synthesis of Arctic System Science

How does it all work?

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