These data are qualitatively derived interpretive polygon shapefiles defining sediment type and distribution, and physiographic zones of the sea floor from Nahant to Salisbury, Massachusetts. Many of

DataONE2017-05-27 更新80

Data Bank 28IS - T-100 and T-100(f) International Segment Data, US and Foreign Air Carriers Traffic and Capacity Data (World Area Code) - 6-Month Restricted (US Point and Foreign Point): [2011-10]

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This CD presents data reported by U.S. carriers operating between airports located within the boundaries of the United States and its territories. These data are often referred to as either "market" o

DataCite Commons2025-04-01 更新70

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