Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Holmes, R.
1961
Insect Sampling
24 Aug Barrow, Alaska
Snow lost night as Pat The fundr was
covered with 7-½" powder. The
ponds were froze to various degrees
at 1000. The wind (10-30 mph) seemed
to aid in the ice melting. I
believe The ponds were all covered
with ice in the early morning but
by late morning, some had melted.
Air temperature at 1230 (At APL) -32°.
Pond temp from P-A only - due to a
broken thermometer after ours was taken
P-A - permanent = 13" - Temp = 2.5°C
By surface was frozen with ½" ice. The
pond was combined with A'. The
sample taken today was about 1"
above #1. Level at 3.5
P-B - 14" pbr. - level at 5.50. Snow
only with <2' ring I measure
the edge (~20%). Level (sample
about = h#1,
P-C - 19" pbr. - same levels as pure
sample. Water level = 5.0. At
present a edge only - mowing by
grasses.