Descent: 0 feet (0 m)
Description:
The east side of Viscaino Road climbs from Concepcion Rd. up to
Anacapa Rd. This side of the hill is mostly residential. The
steep upper section has a nice view to distract you
from your efforts.
Altimeter altitude
(Altitude linearly interpolated from altimeter
samples, and smoothed with a 0.04mi gaussian.)
![](viscainoeast_aalt.gif)
Each horizontal line is 100 feet. Each vertical
line is 0.2 miles. Gradiometer grade
(Grade linearly interpolated from gradiometer
samples, and smoothed with a 0.04mi gaussian.)
![](viscainoeast_ggrade.gif)
Each horizontal line is 2% grade. Each vertical
line is 0.2 miles. Altimeter grade
(Grade linearly interpolated from altimeter
samples, and smoothed with a 0.20mi gaussian.)
![](viscainoeast_agrade.gif)
Each horizontal line is 2% grade. Each vertical
line is 0.2 miles. Comparison of grades
(Green grade is from the gradiometer, magenta grade
is from the altimeter, and white is where they
overlap.)
![](viscainoeast_cgrade.gif)
Each horizontal line is 2% grade. Each vertical
line is 0.2 miles.
Overall (averaging my first 20 hills),
the gradiometer grade averages 0.63 (% grade)
higher than the altimeter grade, with a standard
deviation of 4.5 (% grade per road).
This error may be due to:
-
Uneven sampling -- I take more samples when the
hill gets steep.
-
Calibration error (of the gradiometer or
altimeter).
In the end, though, I think that each individual
sample is accurate to within about 2% for that
instantaneous segment of road. My results may
not always agree with my altimeter, but they are
generally repeatable within 1%. I think that
I just need to take more samples to generate
more accurate graphs.
Raw Data:
Dist Grade Alti. Location
---- ----- ------ --------
0.00 10% 290 start - Concepcion Rd.
0.03 15% 320 12700 Viscaino
0.07 -8% 340 short downhill
0.14 21% 360 short rise to Camino Medio
0.19 3% 380 12820 Viscaino - flatter section
0.25 13% 410 12840 Viscaino - steady climbing now
0.27 18% 440 steep, nice view
0.31 16% 470 12846 Viscaino
0.34 12% 490 nearing top
0.39 0% 510 end - top
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Lucas's
cycling gradiometer page.