Nonlinear temperature response of lake ice breakup
نویسندگان
چکیده
منابع مشابه
Sensitivity of Lake-Effect Snowfall to Lake Ice Cover and Temperature in the Great Lakes Region
High-resolution Weather Research and Forecasting Model (WRF) simulations are used to explore the sensitivity ofGreat Lakes lake-effect snowfall (LES) to changes in lake ice cover and surface temperature.A control simulation with observed ice cover is compared with three sensitivity tests: complete ice cover, no lake ice, and warmer lake surface temperatures. The spatial pattern of unfrozen lake...
متن کاملIce dynamic response to two modes of surface lake drainage on the Greenland ice sheet
Supraglacial lake drainage on the Greenland ice sheet opens surface-to-bed connections, reduces basal friction, and temporarily increases ice flow velocities by up to an order of magnitude. Existing field-based observations of lake drainages and their impact on ice dynamics are limited, and focus on one specific draining mechanism. Here, we report and analyse global positioning system measureme...
متن کاملA proxy record of winter temperatures since 1836 from ice freeze-up/breakup in lake Näsijärvi, Finland
One obstacle on the way to a comprehensive spatial reconstruction of regional temperature changes over the past centuries is the sparseness of long winter temperature records. This paper reconstructs a proxy record of April and November–December temperatures in southcentral Finland for the interval from 1836 to 1872 from breakup and freeze-up dates and ice-cover duration of a lake. Emphasis is ...
متن کاملStar patterns on lake ice.
Star patterns, reminiscent of a wide range of diffusively controlled growth forms from snowflakes to Saffman-Taylor fingers, are ubiquitous features of ice-covered lakes. Despite the commonality and beauty of these "lake stars," the underlying physical processes that produce them have not been explained in a coherent theoretical framework. Here we describe a simple mathematical model that captu...
متن کاملLarge-Scale Climate Controls of Interior Alaska River Ice Breakup
Frozen rivers in the Arctic serve as critical highways because of the lack of roads; therefore, it is important to understand the key mechanisms that control the timing of river ice breakup. The relationships between springtime Interior Alaska river ice breakup date and the large-scale climate are investigated for the Yukon, Tanana, Kuskokwim, and Chena Rivers for the 1949–2008 period. The most...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2004
ISSN: 0094-8276
DOI: 10.1029/2004gl019530