Scientists, communities get help from NASA soil moisture mapper

Posted February 17th, 2015 in Stormwater & Green Infrastructure
The mission of NASA’s newest Earth satellite may sound simple, but its findings could have huge impacts across the world and right here in the Midwest. When it launched last month, the Soil Moisture Active Passive, or SMAP, began a three-year project to collect data on a key player in the water and carbon cycles that determine plant growth and drive weather patterns: soil moisture. IISG’s Michael Brennan has the details. 

As the name suggests, soil moisture data tells us how much water the soil can absorb and store. These measurements play a crucial role in everything from knowing when to plant crops to community flood planning. If there isn’t enough moisture in the soil, plants can’t take root and grow. And if the soil’s storage capacity has been maxed out, any additional rain or snowfall will runoff into nearby rivers and lakes—carrying nutrients and contaminants with it. 

Due to the earth’s vast landscape, tracking and assessing soil moisture is extremely challenging, especially in remote locations. In fact, a lack of detailed soil moisture data has historically been a significant hurdle for community planners, farmers, and climate and weather forecasters. SMAP has the potential to change all of that. Its microwave radiometer and radar instruments will give us the most accurate, high-resolution moisture data ever collected from space. And its orbital path will ensure we have measurements from pole to pole. 

NASA has said that it expects to release the first set of measurements within nine months, with fully-validated data expected in 15 months. With these numbers in hand, farmers will be able to hone in on the ideal time for planing and harvesting and community decision makers will be able to pinpoint their flood risk—and plan accordingly. The data will also tell scientists how much carbon is being stored in or released by plants, allowing them to refine the climate models that we rely on to predict and prepare for the impacts of climate change.  

The NASA space program is responsible for a lot of technological and scientific advancements, but SMAP may be its greatest contribution yet. 

For more information on SNAP for video showing its launch and orbit, visit smap.jpl.nasa.gov/. 

 

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Out with the old. A newly updated UnwantedMeds.org is here to make safe disposal of old medications easier than ever.

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Out with the old. A newly updated UnwantedMeds.org is here to make safe disposal of old medications easier than ever. Read more at the link in bio.

We are excited to offer the opportunity to propose a speaker or panel session during the 2026 Emerging Contaminants in the Environment Conference April 28-29. The conference will feature traditional 15-minute presentations and a poster session on the latest in emerging contaminant research, policies, and outreach in the soil, water, and air.

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We are excited to offer the opportunity to propose a speaker or panel session during the 2026 Emerging Contaminants in the Environment Conference April 28-29. The conference will feature traditional 15-minute presentations and a poster session on the latest in emerging contaminant research, policies, and outreach in the soil, water, and air.The deadline to propose a session is June 16, 2025.Learn more at the link in bio.

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What Wild Things Will You Find in Your Watershed? Join us from April 22 to May 19 on iNaturalist for the Great Lakes BioBlitz! Participate in weekly challenges, view others' observations, and build community across the basin.How to Participate:-Register: Sign up on iNaturalist.-Observe: Explore your watershed and document the wildlife you find.-Engage: Share your observations and connect with fellow nature enthusiasts.

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Join the Invasive Crayfish Collaborative for an exciting webinar featuring Purdue University master's student Izzy Paulsen. Izzy will share her mixed method study exploring how and why teachers use live crayfish and their interest in outreach. Her study draws from interview and survey data conducted in Great Lakes states. Register at the link in bio.
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