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ABOUT SCALE HIVES HONEYBEES SITE DATA NEWS LINKS
Lyter, ND
Return to Regional/National map
County:  Barnes State: ND
Active Since: 2010 Observer: Rice
Lat/Long: 46.9, -98.3 Landsat WRS Path/Row: 31/27
MODIS TIle V/H: 0/0 MODIS Line, Samp: 0.00, 0.00

Site/Hive Description:

This is one of six sites (Arrowwood, Grindler, Kunze, McMillan, Wannamaker, and Lyter) that are production apiaries with about 40 colonies each. Colony performance is being monitored as part of a USDA Area Wide Investigation by Dr. Jeff Pettis and others. Detailed information is not included here for privacy considerations.
Hives:

Colonies are managed for honey production, and are in commercial Langstroth 10 frame equipment. Telescoping covers were used in 2011 and 2012 (2 hives/apiary). Colonies were installed on USDA/NASA electronic scales and the data here are averaged daily gain of edited records within the apiary.
Forage:

The colonies are located in the Prairie Pot Hole region, and forage consists primarily of native forbs, some of which are bee friendly crops.

Nectar Flow Data 2012

Download Data File (comma delimited), download QA flag key

 

 
MODIS Subset Data (from the ORNL DAAC)
Red dots are the average of all pixels with acceptable quality (see landcover extract below for area covered).
Blue dots are the center pixel only (point is not plotted if the pixel is of unacceptable quality).

 

NDVI

The Normalized Difference Vegetation Index (NDVI) is the ratio of the  difference between visible (red) and infra-red (IR) wavebands to the sum of these bands. 

NDVI = nir - red / nir + red


 NDVI provides an indication of the amount and vigor of vegetated  surfaces. 

 NDVI has been widely used with multiple generations of satellite data.

EVI

 The Enhnaced Vegetation Index (EVI) is a more complicated combination of wavebands compared to the more widely used index, NDVI.  The advantage of this newer index is improved sensitivity in high biomass regions and reduction in atmospheric influences.
where,
pNIR = NIR reflectance
pRed = red reflectance
pBlue = blue reflectance
C1 = atmosphere resistance red correction coefficient
C2 = atmosphere resistance blue correction coefficient
L = canopy background brightness
G = gain factor

The MODIS sensor on the Terra satellite platform provides us with 16-day composite measures of NDVI/EVI throughout the year.  NASA distributes MODIS data from many of their distributed data centers.

MODIS Land Cover

MODIS Data Subset Citation:
Oak Ridge National Laboratory Distributed Active Archive Center (ORNL DAAC). 2007. MODIS subsetted land products, Collection 4. Available on-line [http://www.daac.ornl.gov/MODIS/modis.html] from ORNL DAAC, Oak Ridge, Tennessee, U.S.A..
 
 
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Last Updated: February 1, 2024