|
|
RESPONDENT
|
|
Dmitry Zamolodchikov
|
|
|
SITE NAME
|
|
Lavrentia settlement, Chukotski Peninsula, Russia
|
|
| Contact details
(phone/fax//e-mail//address): |
| // dzamolod@cepl.rssi.ru //
|
|
PROJECT DETAILS |
|
Project name:
|
|
Long-term whole-year studies of carbon and water cycles and energy flows in typical tundra.
|
|
|
Start of survey:
|
End
of survey: |
Team
size: |
|
|
|
|
|
WEATHER
CONDITIONS
|
|
|
|
Weather conditions: |
| Spring was the earliest and warmest on record during the last 5 years of observations. Snow melt, and phenological events in plants and insects occurred approximately two weeks earlier than normal. Snowfall and storm were not recorded during summer. Summer was one of the warmest, sunny and driest during the last 5 years, which resulted in melting of all snow patches in vicinity. Southerly wind prevailed during summer, and the sea bay near Lavrentia settlement was ice-free during almost whole summer and autumn. Average air temperature in autumn (September-mid November) was twice the value in 2001. Average humidity of the upper soil layer dropped below 50% in summer indicating an unusual drought. Wind strength from June to October was below average. With a general warming tendency during last 30 years 2002 season was the warmest after 1995 as determined from the sum of active temperatures (mean monthly air temperatures were -0.9øC in May, +7.3øC in June, +8.0øC in July, +8.2øC in August, +3.8øC in September, -0.4øC in October).
|
|
|
|
|
|
|
|
| Date of ice-break on
rivers: |
|
|
| Date of final loss of
snow: |
|
|
BIOTIC
CONDITIONS
|
| Rodents abundance evaluation: |
low
|
|
|
Breeding conditions:
|
| Owls and Arctic Foxes were not seen, while skuas were present in usual numbers. Most waders and passerines arrived earlier than normal in spring. Sandhill Cranes migrated in usual time in autumn. Generally conditions were favourable for most breeding birds in 2002.
|
|
|
Rodent dynamics:
|
| Lemmings were practically absent in summer, similar to 2001.
|
|
Rodent species recorded:
|
|
|
|
|
Summary
of fauna studies: |
| Long-term whole-year studies of carbon and water cycles and energy flows in typical tundra were carried out by Dept. of ecology of Biological Faculty of the Moscow State Univ. and Russian Ac. Of Sc., which included measuring of climatic parameters and phenological observation.
|
|