Global Warming And Arctic Climate, 2010 University of Massachusetts - Amherst
Global Warming And Arctic Climate, Ray Bradley
IPY STEM Polar Connections
No abstract provided.
Build A Remote Sensing Satellite, 2010 University of Massachusetts - Amherst
Build A Remote Sensing Satellite, Rob Snyder
IPY STEM Polar Connections
•Build a model of a remote sensing satellite. •Use your model of a satellite to transform reflected visible of different frequencies into electrical signals with different voltages. •Use different colors of paper to calibrate the model. •Create a model of a landscape using three different colors of paper. •Create a “false color” image of the model of a landscape (if time permits).
Seasonal Changes In Sea Ice, 2010 University of Massachusetts - Amherst
Seasonal Changes In Sea Ice, Rob Snyder
IPY STEM Polar Connections
No abstract provided.
Why The Arctic? An Overview, 2010 University of Massachusetts - Amherst
Why The Arctic? An Overview, Julie Brigham-Grette
IPY STEM Polar Connections
No abstract provided.
Albedo Effects In Polar Regions, 2010 University of Massachusetts - Amherst
Albedo Effects In Polar Regions, Morton Sternheim
IPY STEM Polar Connections
•Why are Polar Regions more affected by global warming than other parts of the globe? •One reason (there are others) is that as sea ice melts and more open water appears, more energy is absorbed, and warming accelerates. •This is a form of positive feedback and it makes the polar climate change faster than the climate in temperate areas. •Increasing vegetation on land also has a similar positive feedback effect.
A (Selective) History Of The International Polar Year, 2010 University of Massachusetts - Amherst
A (Selective) History Of The International Polar Year, Ray Bradley
IPY STEM Polar Connections
No abstract provided.
Atmospheric Co2 And Temperature. What Is Normal?, 2010 Iowa State University
Atmospheric Co2 And Temperature. What Is Normal?, Beth Caissie, Julie Brigham-Grette
IPY STEM Polar Connections
–How much of a change in CO2 concentration and other GHGs is natural? –What is the normal range of CO2 and temperature variability? How is normal defined in this context? –What is the relationship between CO2 and global temperatures?
Caribou, Whales, Andenvironmental Variability, 2010 University of Massachusetts - Amherst
Caribou, Whales, Andenvironmental Variability, Craig Nicolson
IPY STEM Polar Connections
How many caribou are there? Increasing or decreasing? Carrying capacity? How do we measure habitat quality?? Satellite imagery. Whale migration patterns. Activities on caribou and whales. Also, see http://www.nfb.ca/film/being_caribou/ a video entitled Being Caribou..
Melting Ice And Sea Level Change, 2010 University of Massachusetts - Amherst
Melting Ice And Sea Level Change, Morton Sternheim
IPY STEM Polar Connections
Global warming can melt snow or ice on Greenland, Antarctica, and other land areas. It can also melt floating ice in the Arctic Ocean. How do the two cases compare in changing sea levels?
Brine Rejection Activity, 2010 Iowa State University
Brine Rejection Activity, Beth Caissie, Rob Snyder
IPY STEM Polar Connections
As salt water freezes, the salt is pushed out of solution through channels in the ice. This process is called brine rejection or brine exclusion. These channels are often used as microhabitats by ice algae, zooplankton, and even tiny fish. You can easily demonstrate what these channels look like.
Play Doh Coring Sampler Teacher Guide, 2010 Iowa State University
Play Doh Coring Sampler Teacher Guide, Beth Caissie
IPY STEM Polar Connections
Sediment cores are one of the most valuable types of samples for researchers who would like to learn about past climate or ecological changes. Cores can be retrieved from lakes, marshes, swamps, fields, and the ocean. The layers often reveal striking changes in color (see photos) reflecting changing sediment composition (i.e. more clay deposition or more microfossil s). This easy activity illustrates the basic geologic principle that horizontal layers of sediment become older the deeper you go below the Earth’s surface (Law of Superposition). Each layer contains sediment, fossils and organic matter etc. that can inform us about past changes …
Sea Ice Food Webs—Hands On Sampler Teacher Guide, 2010 Iowa State University
Sea Ice Food Webs—Hands On Sampler Teacher Guide, Beth Caissie
IPY STEM Polar Connections
This activity is a variation on a food web game that I’ve seen played many times before, but it is adapted to reflect a sea ice food web and show the many organisms that are intimately connected to polar bears.
Glacier Goo Activity, 2010 Iowa State University
Glacier Goo Activity, Beth Caissie
IPY STEM Polar Connections
We provided the students with background information about what a glacier is, where they are, how they move. Then split the students into four groups each tasked with a question to answer through experimentation
Group s 1 and 2: How does temperature change the way a glacier flows? (we provided frozen, and room temperature goo, and a microwave for heating the goo)
Groups 3 and 4: How does friction or obstacles change the way a glacier flows? (we provided different pvc tubes—tubes with nothing done to them, tubes with paintable sand applied to them, and tubes with rocks glued to …
Carbon Travels Game, 2010 University of Massachusetts - Amherst
Carbon Travels Game, Marie Silver
IPY STEM Polar Connections
Carbon cycle game.
Proportions for this activity are based LOOSELY on data from the Exploring the Environment website http://davem2.cotf.edu/ete/modules/carbon/effig11_full.html
They have a brief overview of the carbon cycle at http://davem2.cotf.edu/ete/modules/carbon/efcarbon.html
Recommended Books, 2010 University of Massachusetts - Amherst
Recommended Books, Holly Hargraves, Ray Bradley
IPY STEM Polar Connections
No abstract provided.
Polar Literature, 2010 University of Massachusetts - Amherst
Permafrost, Ice Sheets, And Sea Level, 2010 Iowa State University
Permafrost, Ice Sheets, And Sea Level, Beth Caissie, Julie Brigham-Grette
IPY STEM Polar Connections
Sea level rise and inhabited coastlines. Ice shelves and sea ice do not contribute to sea level but they can buttress the land ice sheets from rapid retreat. Causes of Sea Level Rise:
•Melting of glaciers, ice caps, ice sheets •Thermal expansion of sea water ••Small scale changes due to anthropogenic land water storage (damming rivers, over-pumping of water and fuels, wetland and forest destruction) •Relative changes in sea level due to tectonic movements (land subsidence or rebound)
Teacher’S Guide: Penguins Of Antarctic Region, 2010 University of Massachusetts - Amherst
Teacher’S Guide: Penguins Of Antarctic Region, Marie Silver
IPY STEM Polar Connections
These activities help to connect science learning with real world issues through a study of the Antarctic region. By studying the penguins of the South Pole region you can tap students’ interest in a charismatic macrospecies through demonstrating their adaptation to ongoing climate changes and human activity. A number of current research projects at Antarctic research stations can be accessed online and the data used to demonstrate key concepts of feeding behavior, migration, breeding and population dynamics. The attached activity is in three parts and includes one hands-on demonstration, several mapping exercises and some data interpretation. These activities also provide …
A New Technique For Firn Grain-Size Measurement Using Sem Image Analysis, 2010 University of Maine
A New Technique For Firn Grain-Size Measurement Using Sem Image Analysis, N.E. Spaulding, D.A. Meese, I. Baker, P.A. Mayewski
Dartmouth Scholarship
Firn microstructure is accurately characterized using images obtained from scanning electron microscopy (SEM). Visibly etched grain boundaries within images are used to create a skeleton outline of the microstructure. A pixel-counting utility is applied to the outline to determine grain area. Firn grain sizes calculated using the technique described here are compared to those calculated using the techniques of Gow (1969) and Gay and Weiss (1999) on samples of the same material, and are found to be substantially smaller. The differences in grain size between the techniques are attributed to sampling deficiencies (e.g. the inclusion of pore filler in the …
Climate In The Southern Sawatch Range And Elk Mountains, Colorado, U.S.A., During The Last Glacial Maximum: Inferences Using A Simple Degree-Day Model, 2010 University of Minnesota, Morris
Climate In The Southern Sawatch Range And Elk Mountains, Colorado, U.S.A., During The Last Glacial Maximum: Inferences Using A Simple Degree-Day Model, Keith A. Brugger
Geology Publications
Equilibrium-line altitudes (ELAs) were determined from reconstructions of 22 paleoglaciers at their extent during the local last glacial maximum (LGM) using the accumulation-area method. LGM ELAs thus derived ranged from 2980 to 3560 m and follow a statistically significant regional trend of rising ~4.5 m km-1 to the east. Two approaches using a degree-day model were used to infer LGM climate by finding plausible combinations of temperature and precipitation change that (1) would be required to lower ELAs to their mean LGM values in both the Taylor Park/eastern Elk Mountains region and western Elk Mountains, and (2) provide steady-state …