Impacts of Climate Change and Variability on Hydropower in Southeast Alaska: Planning for a Robust Energy Future
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

All these words:

For very narrow results

This exact word or phrase:

When looking for a specific result

Any of these words:

Best used for discovery & interchangable words

None of these words:

Recommended to be used in conjunction with other fields

Language:

Dates

Publication Date Range:

to

Document Data

Title:

Document Type:

Library

Collection:

Series:

People

Author:

Help
Clear All

Query Builder

Query box

Help
Clear All

For additional assistance using the Custom Query please check out our Help Page

i

Impacts of Climate Change and Variability on Hydropower in Southeast Alaska: Planning for a Robust Energy Future

Filetype[PDF-1.72 MB]


Details You May Also Like

Details:

  • Alternative Title:
    Climate Impacts on Hydropower in Southeast Alaska
  • Personal Author:
  • NOAA Program & Office:
    NMFS (National Marine Fisheries Service)
  • Description:
    This study examines observed historical climate variability in Southeast, Alaska, where several new and expanded hydropower facilities are proposed. Analysis suggests that climate trends in this region since the 1920s are modest, while trends since the mid-1940s are somewhat stronger. Sparse data collection increases the uncertainty associated with these trends. Variability in temperature, precipitation, snow, and discharge is largely dominated by random interannual fluctuations, as well as semi-decadal to decadal climate modes such as the El Niño-Southern Oscillation and the Pacific Decadal Oscillation (PDO). The dominance of these modes of variability on the regional climate is useful for risk management because prediction tools exist for season-ahead forecasting. Longerterm climate trends, while smaller in magnitude, will likely lead to warmer and wetter conditions in the coming century. The persistence of a negative PDO may lead to cooler, drier conditions in the short term. Climate variability and change both have implications for shifts in the timing and magnitude of river discharge that could pose challenges to management of capacity-limited reservoir systems. An increasingly interconnected power grid in Southeast Alaska might help mediate these climate impacts, but there are still large data gaps that contribute to management risk. Enhanced monitoring of snow, temperature, runoff, and glacial melt, particularly at elevation and in the watersheds feeding hydropower reservoirs, could help operators reduce risk by eliminating some of the uncertainty about the relationships between climate and water resource availability.
  • Keywords:
  • Document Type:
    Miscellaneous
  • Place as Subject:
    Alaska, Southeast
  • Rights Information:
    Public Domain
  • Compliance:
    Library
  • Main Document Checksum:
  • Download URL:
  • File Type:

Supporting Files

  • No Additional Files

More +

You May Also Like

Checkout today's featured content at repository.library.noaa.gov

Version 3.26