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.




Observations of daily precipitation have been a part of GLOBE from the beginning. At the start, GLOBE’s participation model was that schools would take measurement following all of the original 17 protocols. Atmosphere temperature, precipitation, cloud, and soil moisture measurements were to be collected daily at a site easily accessible to the school. A permanent installation of an instrument shelter containing a max/min thermometer mounted to a post along with a rain gauge was the expected norm with other measurements taken nearby. Daily temperature and precipitation measurements were...


Posted in: Field Campaigns: El Niño GPM GLOBE Science Topics: GLOBE Protocols GLOBE Working Groups: Science Working Group Education Working Group Investigation Areas: Atmosphere Primary Audience: Country Coordinators Partners Students Teachers Trainers Teacher's Guide: Protocol Specific Documents

From the start, the measurement of daily maximum and minimum air temperature within one hour of local solar noon has been a key GLOBE protocol. The low cost approach was to use a U-tube thermometer housed in a wooden instrument shelter facing away from the equator. The U-shaped tube contained mercury with pins on either side of the mercury. As the air temperature warmed the pin on one side would move while the other pin stayed in place; when the air cooled, the pin on the other side would be pushed up. The pins were held in place by magnetized strips behind the thermometer tube so that...


Posted in: Curriculum: Technology STEM GLOBE Science Topics: Climate Climate Change GLOBE Protocols Earth as a System Earth System Science GLOBE Working Groups: Science Working Group Investigation Areas: Atmosphere Primary Audience: Alumni Country Coordinators Partners Scientists Students Teachers Trainers

I recently had the pleasure of meeting a GLOBE student named Aspen. I was excited because my favorite type of tree is Aspen (Quaking Aspen to be more specific, Populus tremuloides to be even more specific), and I was able to tell her some of the fun facts about her namesake. My favorite thing about aspens is their bark. The white powder on it can act as sunscreen. It’s only about an SPF of 5 but it’s still pretty cool. The bark also contains chloroplasts which means it can photosynthesize, making it one of the few deciduous trees that do not solely rely on leaves for...


Posted in: Investigation Areas: Biosphere Primary Audience: Alumni Country Coordinators Partners Scientists Students Teachers Trainers

This time was my first visit to Trinidad and Tobago and to the LAC region. The visit was first of its kinds, knowing vividly that Africans and the People of Trinidad and Tobago have so many things in common in terms of Geography and Historical antecedent.  The motivation for my visit to Trinidad and Tobago started during the 17 th GLOBE Annual meeting at Maryland. Initially, it was just a brief discussion with Henry Saunders (Country Coordinator, GLOBE Trinidad and Tobago). However, after a year, I met Mr. Michael at GLOBE Expedition in New Delhi, India where we had in-depth...


Posted in: GLOBE Science Topics: Meetings/Conferences GLOBE Working Groups: Science Working Group Investigation Areas: Pedosphere (Soil) Primary Audience: Alumni Country Coordinators Scientists Students Teachers