نتایج جستجو برای: shoreline
تعداد نتایج: 2852 فیلتر نتایج به سال:
Mortality of forest and scrub species from most deltas of the Lake Te Anau shoreline is described following unnaturally prolonged flooding during 1975. Despite a high incidence of pinhole borer in the affected beech trees there is conclusive evidence that the mortality in most species was due to prolonged high water tables that exceeded the tolerances of many important shoreline species. Differ...
Two new and one known species belonging to the genus Callistocythere of the family Leptocytheridae from interstitial environments of the Okinawa Islands are fully described. Callistocythere intermedia sp. nov. is regarded as belonging to the C. japonica group, and Callistocythere ryukyuensis sp. nov. belongs to the C. minor group (these groups were established by Hanai 1957 based on carapace mo...
Kaanapali beach is a well-defined littoral cell of carbonate sand extending 2 km south from Black Rock (a basalt headland) to Hanakao’o Point. The beach experiences dynamic seasonal shoreline change forced by longshore transport from two dominant swell regimes. In summer, south swells (Hs = 1-2 m Tp = 14-25 s) drive sand to the north, while in winter, north swells (Hs = 5-8 m Tp = 14-20 s) driv...
Shoreline geomorphology, shoreline stratigraphy, and radiocarbon dates of organic material incorporated in constructional beach ridges record large lakes during the late Pleistocene and late Holocene in the Pyramid Lake subbasin of Lake Lahontan, Nevada, USA. During the late Holocene, a transgression began at or after 3595 F 35 C yr B.P. and continued, perhaps in pulses, through 2635 F 40 C yr ...
Statistical Analysis A total of 488,653 km of shoreline in Kamishak Bay, AK was surveyed for Pacific herring (Clupea pallasi) spawning events from fixed-wing aircraft in years 1978 – 2001, with the exception of 1982 and 1997. Every survey followed the same route. Although multiple surveys occurred in each year, the survey frequency was largely a function of weather, perceived size of the spawni...
Sixty 2nd, 5th, and 8th graders were interviewed on their moral and ecological reasoning about the 1990 Exxon Valdez oil spill that occurred in Prince William Sound, Alaska. Results showed that children understood that the oil spill negatively affected the local Alaskan shoreline, marine life, fishermen, recreationists, and the oil company. Children cared that harm occurred to the shoreline and...
The morphological changes caused by storm events in two Barcelona beaches were recorded using video monitoring techniques during the period 2001–2006. Changes in shoreline position and configuration and submerged bar position and shape were analyzed during the 25 major storm events that occurred during the study period. Beach responses to storms were grouped into three categories: shoreline adv...
We compare the chromatographic signatures of petroleum biomarkers in Deepwater Horizon (DH) source oil, three other reference crude oils, DH emulsified mousse that arrived on Alabama's shoreline in June 2010, and seven tar balls collected from Alabama beaches from 2011 to 2012. Characteristic hopane and sterane fingerprints show that all the tar ball samples originated from DH oil. In addition,...
HE WATER quality characteristics and some heavy metals cations (Fe, Mn, Zn, Cu and Pb) of Damietta estuary and in front of Mediterranean coastal shoreline were evaluated through four successive cruises (February 2008 to November 2008). Twelve sites were selected from the two sectors. The results obtained showed that serious deterioration of quality of water at Damietta estuary compared with Med...
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