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ABOUT SCALE HIVES HONEYBEES SITE DATA NEWS LINKS
Hopkinsville, KY
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County:  Christian State: KY
Lat/Long: 36.8, -87.4 Observer: Hazelrigg
Active Since: 2009  
   

Site Description:

Site is surrounded by a mixture of pasture and row crops (non-nectar producing) and woodlands. Hive is located about 1/8 mi east of home in open grassy area.

Hive is a double deep. Colony begun in Spring of 2008 with an Italian queen.

Scale is a Fairbanks model 1124A, 1000 lb capacity, leveled on bricks, exposed to weather.

Forage is primarily Tulip poplar and Locust in May, with clover and blackberrys through the summer.

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..
 
 
Meteorological Data

 

coming soon...

 

 

 
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Last Updated: October 29, 2009