. Ecological investigations of the tundra biome in the Prudhoe Bay region, Alaska . Fig. 15. Photo of hoarfrost crystals on snow from dirt patch. in this area was shallower than the average thickness in 1973, just as it was in 1972 (see traverse 1 data in Tables 6 and 7). It was also wind sculptured and had bits of vegetation protruding through it (Figs. 15 and 16). When melting begins it spreads outward from the bits of protruding vegetation, which act as centers for ablation, as do the bare soil patches. The progress of snowmelt can be seen by looking at sequential aerial photographs that we
. Ecological investigations of the tundra biome in the Prudhoe Bay region, Alaska . Fig. 15. Photo of hoarfrost crystals on snow from dirt patch. in this area was shallower than the average thickness in 1973, just as it was in 1972 (see traverse 1 data in Tables 6 and 7). It was also wind sculptured and had bits of vegetation protruding through it (Figs. 15 and 16). When melting begins it spreads outward from the bits of protruding vegetation, which act as centers for ablation, as do the bare soil patches. The progress of snowmelt can be seen by looking at sequential aerial photographs that were taken between 24 May and 30 June 1972. No melt had occurred by 24 May except along heavily traveled roads. There are five sequences of photographs, and their locations are indicated by the rectangular areas blocked out in Fig. 1. The sequences are as follows: Sequential Photographs: Set Number 1. BP pad "N" area during breakup 1972 Arrow located on west side of Pad N and pointing east. Sequential Photographs: Set No. 2. BP Gathering Center No. 1 during breakup 1972 a. 24 May b. 5 June c. 9 June d. 12 June e. 15 June f. 30 June
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Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
