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 



"With its antenna now spinning at full speed, NASA's new Soil Moisture Active Passive (SMAP) observatory has successfully re-tested its science instruments and generated its first global maps, a key step to beginning routine science operations next month." Read more HERE ! Brian


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Hello reader! My name is George Duffy! I am a graduate student from the University of Urbana Champaign, and I am excited to begin sharing my experience as a GPM graduate researcher of with you. My research focuses on snow, or more specifically, snowfall retrieval. Technically, the GPM satellite doesn't measure precipitation, it measures radar echoes from its Dual Frequency Precipitation Radar (DPR) and radiation from it's General Microwave Imager (GMI). It's up to us to develop algorithms that can retrieve precipitation information from these radar images. It's...


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The term “won in a landslide” is particularly troubling to me because when a landslide happens, the kind that I study at least, there are seldom “winners”. My research looks at how rainfall interacts with the environment to cause natural disasters like flooding and landslides. Knowing where, when and how much rain or snow is falling is key to understanding where we may have extreme events that can impact people. If you consider where we get a lot of rainfall, like some of our tropical regions… ...and combine that with areas that have the right factors to cause a landslide, such...


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So, now that we have a satellite in space called SMAP, why is the data from the spacecraft so important? SMAP will help: Monitor Drought Predict Floods Assist Crop Productivity Improve Weather Forecasting Linking Water, Energy, and Carbon Cycles Read more HERE


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To find our where the SMAP spacecraft is, at any time in relation to my school, you can check on the S MAP Orbit Calculator Tool ! As you might have noticed in the SMAP Block Pattern Soil Moisture Protocol document, we recommend that measurements be taken and collected around 9:00am local time.  This is due to the SMAP spacecraft's 6am and 6pm local time equator crossings.  In order to have optimal SMAP comparison/validation data, it is vital to take your measurements as close to the 9am local time as possible. Any questions, please contact me at Brian.A.Campbell@nasa.gov ...


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Hi, my name is Anna Wilson. I moved to Asheville, NC in the summer of 2004, just before several floods caused by tropical storms left me without power for more than a week. This spurred my previously casual interest in the weather to become an obsession that eventually prompted me to go back to school. Here I am with a PARSIVEL disdrometer (an instrument that measures the size and velocity of particles that pass through its sampling area), after I completed my bachelor’s degree in Atmospheric Science and started working towards my PhD in Environmental Engineering: (photo credit:...


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Hi Everyone, This past week and a half has been rather quiet as we performed two orbital maneuvers. The first maneuver placed the spacecraft at an altitude closer to its final orbit. The second one slightly adjusted the inclination of the orbit to ensure that SMAP goes over the equator at approximately 6:00 am and 6:00 pm every day, which are the ideal times to obtain our science measurements. For those of you wondering how SMAP maneuvers around, the spacecraft contains a single pressurized propellant tank carrying 81 kilograms (179 pounds) of hydrazine. The spacecraft adjusts...


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As you know, SMAP will be giving us unprecedented soil moisture data from around the Earth. But, did you know that SMAP is also looking at frozen soil?  Check out the article link below to learn more about this measurement and how it aligns to our better understanding of our ecosystem and climate change. "Let It Go! SMAP Almost Ready to Map Frozen Soil" SMAPtastic, Brian


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Hey All, We just finished up a two-day GLOBE Train-the-Trainer Workshop at the GEMS World Academy in Chicago, Illinois. Trainers from across the USA came to learn about several NASA Earth Science Missions and their affiliation with GLOBE and associated protocols.  Those missions are Cloud Satellite (Cloudsat), Global Precipitation Measurement (GPM), Soil Moisture Active Passive (SMAP), and Landsat. On the SMAP side of things, we had a bit of a tough time digging out soil samples for the SMAP Block Pattern Soil Moisture Protocol due to snow/ice cover and partially frozen soil*. ...


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Hi Everyone, This past week has been smooth sailing as we tested both of our instruments, the radar and the radiometer. The radar’s high power transmitter was turned on as the spacecraft was flying over the North Atlantic and then over Greenland. The telemetry data looked great and the signals received clearly showed the transition from ocean to land (yay!). There were some biases with the data that still need to be worked out, however everything is working and we will have a better sense of the quality of the radar data once the antenna starts spinning. During this past week we also...


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