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 



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