STEM Network Blog Intro

STEM Professionals' Blog


The GLOBE International STEM professionals Network (GISN) Blog is an online collaborative effort where scientists associated with GLOBE post their thoughts, comments, and philosophies about a variety of science topics.

GLOBE strongly encourages positive and productive discussions to further advance the scientific understanding of all involved with The GLOBE Program.

Scientist Blogs Aggregator




A couple of years ago, I attended a seminar sponsored by the Climate and Global Dynamics Division (CGD) of the National Center for Atmospheric Research (NCAR) on how climate change is threatening the survival of wolverines (Gulo gulo).  This scientist, Synte Peacock from CGD, painted a gloomy outlook for this ferocious creature after using a climate model to examine changes in spring snow cover and summer air temperatures.    However, recent legislative proposals may make the future a little brighter.   A wolverine. Photo Credit: Steve...


Posted in: GLOBE Science Topics: Climate Climate Change

Blog originally posted on the GLOBE Scientists' Blog: http://blog.globe.gov/sciblog/2013/02/21/capturing-plant-green-up-through-your-lens/ This week we have a guest blogger, Jessica Taylor. Jessica has been active as a GLOBE observer and trainer since 2001 and is a Master Trainer at NASA Langley Research Center. She conducts regular GLOBE Teacher Workshops in the areas of atmosphere and phenology investigations and works with several NASA missions to integrate GLOBE activities into their educational outreach efforts. Whenever I talk with teachers about studying phenology, their...


Posted in: GLOBE Science Topics: General Science Earth as a System Investigation Areas: Biosphere » Green-Up / Green-Down

Blog originally posted on The GLOBE Scientists' Blog: http://blog.globe.gov/sciblog/2013/02/13/globe-and-the-landsat-launch/ This week we have a guest blogger, Jennifer Bourgeault.  Jennifer, a member of the GLOBE Land Cover/Biology Team for 10 years, is the North Country Education Services (NCES) New Hampshire GLOBE Partnership coordinator and Master Trainer in the Land Cover/Biology protocols.  She thinks everyone should know how to use the Modified UNESCO Classification (MUC) Field Guide to classify land cover and how to use Multispec to look at change over time. ...


Posted in: GLOBE Science Topics: General Science Earth as a System Investigation Areas: Biosphere

Blog originally posted on The GLOBE Scientists' Blog: http://blog.globe.gov/sciblog/2013/02/06/how-does-globe-improve-your-community-show-us-2013-earth-day-video-competition Earth Day has been inspiring demonstrations and projects for a healthier, more sustainable environment for more than 40 years.  The first Earth Day, celebrated on 22 April 1970, featured over 20 million Americans joining together in auditoriums, parks and streets across the country to show solidarity in the fight against oil spills and toxic dumping, protecting wildlife and their habitats, and carbon...


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The cold weather this last month has led to Lake Erie developing ice cover. This past week, the temperature has been averaging about 20 F (-6 C). Even with temperatures in the 50s and 60s F (10 C to 15 C), ice has formed. See the Figure 1 below. As you can see in the picture, the ice on Lake Erie is broken up into things that look like islands. The wind blows the ice around and breaks it up. There is a straight line through Lake St. Clair that extends down into Lake Erie. What do you think caused this straight line? Usually, on Earth, straight lines are produced by humans. Figure 1:...


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Blog originally posted on The GLOBE Scientists' Blog: http://blog.globe.gov/sciblog/2013/01/30/an-interesting-relationship-soil-temperature-and-climate-change/ It seems common place that warmer air temperature leads to warmer soil temperature. And while this relationship seems intuitive, the effect isn’t always studied, especially with respect to the response from microorganisms. That is why researchers are investigating what happens when the soil temperature increases. An intricate network of soil microorganisms From: Commonwealth Scientific and Industrial Research...


Posted in: GLOBE Science Topics: Climate Climate Change Investigation Areas: Pedosphere (Soil) » Soil Temperature

Blog originally posted on the GLOBE Scientists' Blog: http://blog.globe.gov/sciblog/2013/01/23/trees-in-trouble-what-affect-does-tree-mortality-have-on-climate-change/ Through our trees in trouble series, we’ve examined trees in the Sahel zone in Africa and the United States.  This problem, climate change and dying trees, has been seen on every continent, the only exception being Antarctica, due to the lack of vegetation on the frozen continent.  Scientists have recently found that there is an alarming loss rate of big, old trees, whose ages range from 100-300+ years, in...


Posted in: GLOBE Science Topics: General Science Climate Change Climate Investigation Areas: Atmosphere Biosphere

Blog previously posted on The GLOBE Scientists' Blog: http://blog.globe.gov/sciblog/2013/01/16/a-tale-of-two-extremes/ Weather extremes have become a common theme in the news headlines the past few weeks. For example, nearly every part of the United States has been experiencing one of two extremes – either frigid cold or record-breaking high temperatures. Places like Arizona and California experienced below-freezing temperatures, which can have potential impacts on the crops grown in these typically balmy regions. In contrast, cities in the Southeast U.S., such as Atlanta, Georgia,...


Posted in: GLOBE Science Topics: Climate Climate Change Investigation Areas: Atmosphere

Blog originally posted on The GLOBE Scientists' Blog: http://blog.globe.gov/sciblog/2013/01/11/globe-at-ams-sharing-our-community/ This week I attended the 93rd Annual Meeting of the American Meteorological Society (AMS) in Austin, TX.  I started attending eight years ago as a senior undergraduate meteorology major at Millersville University.  That first year, I'll admit, was very overwhelming - great minds from various expertises within the Earth Sciences came together to share ideas and present their recent research.  The meeting brings many opportunities for...


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Most trees obtain water through their massive root systems, but did you know that some trees can absorb water through their leaves as well? This ability is called foliar uptake. Scientists recently discovered that trees in cloud forests use foliar uptake to obtain water. A cloud forest is a forest that has persistent or seasonally persistent fog or low-level cloud cover. Cloud forests are usually in the tropics or subtropics, have evergreen trees (trees that don’t lose their leaves) and tend to have a lot of mosses and vegetation in the understory of the trees. Cloud Forest located...


Posted in: GLOBE Science Topics: Earth System Science Investigation Areas: Earth As a System Biosphere