August 17, 2017 to August 23, 2017
Project Location: 
Grand Island, NE
Alternate Project Names: 
Eclipse 2017
Project Phase: 
Data Preparation
Funding Type: 
NSF Funded
What's New?: 

Project Configuration

ISFS's soil heat capacity sensors will be unavailable for ARTSE, though it is likely that data from them would have been of low quality anyway due to the short period of time (2 days!) between possible installation and operations.  Instead, soil heat storage will be computed by code we used in the past that assumes volumetric fractions of organic and inorganic soil material and adds in the measured volumetric fraction of water.  It probably is reasonable to assume that Grand Island soil is similar to the values in this code for Sabetha, KS.

We will derive surface temperature from the downward-looking hemispheric infrared radiometers that will be deployed.  To do this, we use a value for emissivity of 0.98, which should be reasonable for the growing hay (grass) at the Museum and likely for the surface near the airport as well.

 

Project Description: 

The path of the 21 August 2017 total solar eclipse across the United States is well documented both spatially and temporally. With this information, video teams from Columbus State University (CSU) have staked out several locations along the path of totality to collect high-resolution video of the event. The ARTSE deployment will leverage one such location so that the high resolution video from that location can be merged with the flux information from one (or both) of the ISFS stations for education and research objectives. The selected location was Grand Island, Nebraska, as it will provide a unique opportunity for public outreach and can offer several benefits from a data collection perspective.  Two location within Grand Island are being explored for the deployment of the flux stations: The Stuhr Museum and a rangeland site near Rockville, NE, both of which are within the path of totality. The former location will offer a tremendous outreach opportunity as the museum is hosting a community wide event during the eclipse. The latter location will offer undisturbed data collection with relatively uniform exposure. The flux stations will be erected at both locations at least 24 hours prior to the eclipse and will remain at their respective locations for at least 24 hours after the eclipse. By collecting data on either side of the event, the evolution of the surface layer fluxes during the event can be compared to those of a typical diurnal cycle.