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ABOUT SCALE HIVES HONEYBEES SITE DATA NEWS LINKS
Scaly, NC
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County:  Macon State: NC
Active Since: 2011 Observer: Vonk
Lat/Long: 34.9, -83.3 Landsat WRS Path/Row: 18/36
MODIS TIle V/H: 0/0 MODIS Line, Samp: 0.00, 0.00

Site/Hive Description:

The apiary consists of 6 colonies is in the Scaly Mountain region at about 3750 ft, at the edge of the Highlands Plateau. The area is varied topography, mostly wooded with some overgrown pasture. Forests are mixed deciduous. The set up was moved to Athens in September 2011 from Scaly Mountain pending fabricating other units.

Hive:
The hive is 10 frame brood chamber of 2 deeps, with 2-4 8 frame mediums for honey supers. The queen is a local mutt captured from a swarm. The hive is exposed to weather, the scale is beneath the hive and protected from inclement weather.

Scale:
The scale is a home crafted electronic logging scale fabricated from an Adam Equipment CPW plus200 440 capacity scale with RS232 interface, sampling at 5 min intervals, accessible on the internet at hivetool.org. Resolution is 0.1 lb.

Scale:
The principal forage consists of maples, blackberry, black locust, tulip poplar, and sourwood.

For more information and data, contact the observer at pvonk@windstream.net.

Nectar Flow Data 2011

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