1. Southeast Alaska Network Inventory and Monitoring Program Glacier Dynamics Glacier Bay National Park and Preserve Klondike Gold Rush National Historical Park

2. Justification Integrate weather, hydrology, landscapes, provide visitor opportunities “raison d’etre” “Determine changes in glacial extent and configuration of selected glaciers in GLBA and KLGO.” Southeast Alaska Network Inventory and Monitoring Program

3. Alaska NPS Glacier Inventory and Change Assessment 1.Map change in areal extent in the 1950’s and 2000’s 2.Estimate volume changes over various time periods (~1995 – 2011) 3.More thoroughly characterize 1-3 “focus glaciers” per park Southeast Alaska Network Inventory and Monitoring Program

4. Areal Extent Anthony Arendt - UAF Glaciation in GLBA diminished 11% (from 53.5 to 48.4%) between 1952 and 2010 Datasets describing physical characteristics of each glacier are in development (length, width, slope, area, elevation). Methods: image processing, digitizing, and watershed modeling Southeast Alaska Network Inventory and Monitoring Program

5. Southeast Alaska Network Inventory and Monitoring Program

6. Volume Change Chris Larsen - UAF Found negative glacier-wide mass balance rates with 5 exceptions. Thinning was greatest on Grand Pacific 2001-2009 (1.99 m/yr) Methods: existing altimetry profiles extrapolated glacier-wide using best available DEM Will project to additional glaciers beyond those directly measured Southeast Alaska Network Inventory and Monitoring Program

7. Southeast Alaska Network Inventory and Monitoring Program 2000-2005 2000-2009 Volume change by elevation

8. Focus Glaciers Mike Loso - APU Demonstrate unique ways in which A) glaciers change in response to climate, and B) landscapes respond to glacier change. Focuses on interpretation and synthesis. Narratives, photos, maps will be presented as “vignettes”. Southeast Alaska Network Inventory and Monitoring Program

9. Focus Glaciers Brady –Remote tidewater with very low-elev accum. zone Margerie –Cruise-ship visible, tidewater, high-elev accum. zone Muir –Formerly tidewater with spectacular retreat history Nourse –Outside park, moraine-dammed threatens infrastructure Southeast Alaska Network Inventory and Monitoring Program

10. Logistics and Budget 10 year revisit schedule Current project –3 years, $400,000 statewide –Multiple investigators, minimal fieldwork –Methods and technology are feasible but developing rapidly –Dependent on quality of available remotely sensed data and DEMs Southeast Alaska Network Inventory and Monitoring Program

11. What we’re learning Southeast Alaska Network Inventory and Monitoring Program Ability to tell a more complete story Drawing multiple partners together

12. Southeast Alaska Network Inventory and Monitoring Program Program Delivery GIS data will be in PDS, and IRMA, and GLIMS, and GINA First progress report headed to IRMA Poster presented at SW AK Parks Symposium Reports and presentations are on W drive Protocol status = pending outcomes

13. Southeast Alaska Network Inventory and Monitoring Program bruce_giffen@nps.gov 907.644.3572