mspelto

mspelto

Professor of Environmental Science at Nichols College since 1989.
Director of North Cascade Glacier Climate Project since 1983.

Recent Articles

Lucia Glacier, Chile Retreat Opens New Embayment

Lucia Glacier retreat from 1987 to 2016 in Landsat images.  Red arrows mark 1987 terminus, yellow arrows 2016 terminus, orange arrow an emerging bedrock area, pink arrow a tributary with increased debris cover and purple dots the snowline. Lucia Glacier…
This article was posted in Blogs.

Pedersen Glacier, Alaska Rapid Retreat 1994-2015

Pedersen Glacier Kenia Peninsula, Alaska retreat from Landsat iamges in 1994 and 2016. The red arrow indicates 1994 terminus, yellow arrow is 2016 terminus, orange arrow indicates northern tributary and purple dots indicates snowline.  Pedersen Glacier is an outlet glacier…
This article was posted in Blogs.

Monacobreen Separates from Seligerbreen, Svalbard

Monacobreen Separation from Seligerbreen in 1999 and 2016 Landsat images.  The red arrow is the 1999 terminus location and yellow arrow the 2016 terminus location.  Moancobreen  is a glacier that terminates at the head of Liefdefjorden , a branch of Woodfjorden in…
This article was posted in Blogs.

Mensu Glacier, Siberia Russia Retreat 1994-2016

Mensu Glacier, Russia in comparison of 1994 and 2016 Landsat images.  Red arrow is the 1994 terminus, yellow arrow 2016 terminus, purple arrow a tributary and purple dots the snowline.  Mensu Glacier (Lednik Mensu) drains northeast from Gora Belukha in the…
This article was posted in Blogs.

Potanin Glacier Area, Mongolia Retreat & Fragmentation

Potanin Glacier, Mongolia comparsion in 1991 and 2016 Landsat images.  Yellow dots indicate 2016 terminus, purple dots the snowline, red arrow the southeast margin of proglacial lake, and purple arrows peripheral alpine glaciers that are fragmenting.  Potanin Glacier is in the…
This article was posted in Blogs.

Moving to AGU Blogosphere

As of today this blog is shifting to the AGU Blogosphere.  The blog has the same name and will have the same approach with two blogs a week on a the response of glaciers to climate change, one glacier at…
This article was posted in Blogs.

Field Observations on Lower Curtis Glacier

This is a visual introduction to our 31 years of work on Lower Curtis Glacier complimented with Google Earth imagery to illustrate the changes.  Each year since 1984 this glacier has received an annual checkup from us, North Cascade Glacier…
This article was posted in Blogs.

Carbon Lake Glacier Retreat, Alaska

On Baranof Island in southeast Alaska there are a pair of unnamed glaciers at the headwaters of the Carbon Lake watershed, that then drains into Chatham Strait.  Here we examine changes in these glacier from 1986 to 2014 using Landsat…
This article was posted in Blogs.

Eiriksjökull Reeat, Iceland

Eiriksjökull  is an ice cap just west of Langjökull In central Iceland.  Here we examine its main western outlet the Braekur using Landsat imagery from 1989 to 2014.  The Icelandic Glaciological Society website on terminus variations is the source of…
This article was posted in Blogs.

Southwest Brazeau Icefield Retreat, Alberta

The Brazeau Icefield straddles high peaks southeast of Jasper, Alberta.  The northern outlet glaciers drain into Maligne Lake and the southern outlet glaciers drain in to Brazeau Lake and the Brazeau River.  The Brazeau River flows into Brazeau Reservoir a…
This article was posted in Blogs.

Lys Glacier Rapid Retreat, Italy

Lys Glacier drains south from Lyskamm in the Monta Rosa Group of Italy.  This glacier has a long history of observations that have indicated two short term advances in the 20th century 1912-21 and 1973-85 amidst a broader retreat.  The…
This article was posted in Blogs.

Verra Grande Glacier Retreat, Italy

Verra Grande flows south from Breithorn, in the Monta Rosa group of Italy. The glacier is 3.5 km long extending from 4000-2700 m. Carnielli (2005) noted that this glacier retreated 816 meters from 1914 to 2001.  There were two period…
This article was posted in Blogs.

Marinelli Glacier Retreat, Chile

Marinelli Glacier, Chile is the largest glacier of the Cordillera Darwin Icefield. This ice cap is in Tierra del Fuego, a region famous for cloudy, stormy weather. Fernandez et al. (2011) indicate that rapid retreat particularly since 1945 has led…
This article was posted in Blogs.