Community Blogs
 

Included below is a feed of the latest blog posts created by the GLOBE Community. To view a tutorial on how you can create a blog click here 



The freezing and thawing of our planet's soil can make a big impact on our climate. Check out the blog below to see just how important this is. SMAP’s focus also includes measurements of freeze/thaw, which tells us whether the land surface is frozen or thawed in areas north of 45-degree north latitude. This is very important to know, because when the vegetation is frozen there is minimal exchange of gasses (CO2 primarily) between the vegetation and the atmosphere. It’s as if the vegetation were in a state of hibernation. This changes however, when spring begins and temperature rises...


Posted in: Field Campaigns: SMAP Primary Audience: Alumni Country Coordinators Partners Scientists Students Teachers Trainers

"The Atlanta Science Festival is an annual public celebration of local science and technology. From March 19-26, 2016, curious people of all ages will explore the science and technology in our region and see how science is connected to all parts of our lives in 100 engaging events, including hands-on activities, facility tours, presentations, and performances throughout the metro Atlanta region." --- http://atlantasciencefestival.org/ On Saturday, March 19, there was a GLOBE/SMAP Training Workshops at the Captain Planet Foundation. Participants learned how to take soil...


Posted in: Field Campaigns: SMAP Primary Audience: Alumni Country Coordinators Partners Scientists Students Teachers Trainers

The SMAP Mission satellite launched on 31-January 2015 from the Vandenberg Air Force Base in California.  Check out the video below to watch it take off!  


Posted in: Field Campaigns: SMAP Primary Audience: Alumni Country Coordinators Partners Scientists Students Teachers Trainers

How do SMAP Scientists Use GLOBE Data (Part II)? Data Analysis and Blog by Dr. Erika Podest, SMAP Scientist In order to start using GLOBE soil moisture data we need at least 15 measurements collected on days when SMAP flew overhead. The Varazdin School is an example of such and the chart below is a comparison between their data and SMAP soil moisture at 36 km 2 spatial resolution. Figure 2: Comparison between SMAP and GLOBE soil moisture from Varazdin school in Croatia. There are several things to note in Fig. 2. First, GLOBE measurements collected early on did not...


Posted in: Field Campaigns: SMAP Primary Audience: Alumni Country Coordinators Partners Scientists Students Teachers Trainers

How do SMAP Scientists Use GLOBE Data (Part I)? Data Analysis and Blog by Dr. Erika Podest, SMAP Scientist SMAP has been collecting soil moisture measurements since mid-April 2015, which are freely available, online through the National Snow and Ice Data Archive Center (NSIDC): https://nsidc.org/data/smap Of utmost importance is to have an assessment of the quality of the data, which is why there is a SMAP calibration/validation group. Its purpose is to determine the accuracy of the measurements and whether there are any biases. In order to calibrate and validate the SMAP...


Posted in: Field Campaigns: SMAP Investigation Areas: Pedosphere (Soil) » Soil Moisture - SMAP Block Pattern Primary Audience: Alumni Country Coordinators Partners Scientists Students Teachers Trainers

Did you know that soil moisture plays a vital role in human health? Those nasty little critters called mosquitoes love warm, wet soil, and can carry extremely dangerous viruses and diseases. We also can use SMAP soil moisture data to assist famine early warning systems. Improved seasonal soil moisture forecasts using SMAP data will directly benefit famine early warning systems particularly in sub-Saharan Africa and South Asia, where hunger remains a major human health factor and the population harvests its food from rain-fed agriculture in highly monsoonal (seasonal) conditions. In...


Posted in: Field Campaigns: SMAP Investigation Areas: Pedosphere (Soil) Pedosphere (Soil) » Soil Moisture - SMAP Block Pattern Primary Audience: Alumni Country Coordinators Partners Scientists Students Teachers Trainers

The NASA SMAP satellite took off for space on January 31, 2015 to study our planet's soil moisture and freeze/thaw state. Once in space, the satellite had to go through a prescribed series of steps to ensure that the spacecraft was functioning and all its instruments and components on-board were working properly. This took several months. In mid-April 2015, NASA starting receiving its first soil moisture measurements from SMAP's combined high resolution radar and its high accuracy radiometer. The combination of this data produced a data resolution of approximately 8km. Unfortunately,...


Posted in: Field Campaigns: SMAP Investigation Areas: Pedosphere (Soil) Pedosphere (Soil) » Soil Moisture - SMAP Block Pattern Primary Audience: Alumni Country Coordinators Partners Scientists Students Teachers Trainers

There are many application for SMAP soil moisture satellite data. Understanding drought risk is vital to the health of the planet and to the lives of potentially billions of people around the world. Soil moisture strongly affects plant growth and hence agricultural productivity, especially during conditions of water shortage and drought. Currently, there is no global in situ network for soil moisture monitoring. Global estimates of soil moisture and plant water stress must be derived from models. These model predictions (and hence drought monitoring) can be greatly enhanced through...


Posted in: Field Campaigns: SMAP GLOBE Science Topics: Earth System Science Investigation Areas: Pedosphere (Soil) Pedosphere (Soil) » Soil Moisture - SMAP Block Pattern Primary Audience: Alumni Country Coordinators Partners Scientists Students Teachers Trainers

We all know that the SMAP satellite measures soil moisture. But, how does knowing our planet's soil moisture help us in understanding agriculture's reaction to it? SMAP monitors soil moisture and provides critical information for drought early warning. In fact, a deficit in the amount of moisture in the soil defines agricultural drought. SMAP's measurements will come into play because researchers forecast a threefold increase in drought frequency in many regions of the world by the end of the 21st Century. History shows that a sustained drought can result in crop failure, deaths of...


Posted in: Field Campaigns: SMAP Investigation Areas: Pedosphere (Soil) Pedosphere (Soil) » Soil Moisture - SMAP Block Pattern Primary Audience: Alumni Country Coordinators Partners Scientists Students Teachers Trainers

My first empirical contact with the soil started almost 10 years ago when I was writing my B.Sc Dissertation on Grain Size Characteristics of Overbank Deposit on the Floodplains of Opa Reservoir Basin SW Nigeria . While undergoing this research I took 200 core bulk soil sediments along the three selected floodplains coupled with laboratory testing of samples, after a year the research was published by International Journal of Environmental Hydrology. http://www.hydroweb.com/journal-hydrology-2007-paper-22.html The SMAP training at LA during the 20th GLOBE Annual and Partners...


Posted in: Field Campaigns: SMAP GLOBE Working Groups: Science Working Group