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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
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
• 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.
Look for connections
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
• 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)
Look for connections
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
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
Potential linkages of SASS projects
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
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