Geostatistical mapping and spatial variability of surficial sediment types on the Beaufort Shelf based on grain size data

摘要: Abstract The paper describes an approach for a quality controlled mapping of grain sizes and sediment textures the Beaufort Shelf in Canadian Arctic. is based on size data collected during Nahidik Program (2005–2009) earlier. A replenishment since 1980s, as well consideration correlating parameters (bathymetry, slope input) to cokriging algorithm, amends former way surficial sediments Shelf. analysis showed that simulation input by Mackenzie River, modeled cost–distance function, was key variable reducing errors output estimate. Furthermore, compares geostatistical interpolation methods ordinary kriging recommends use combination both. predicted mean standard this study superior method clay, silt sand while more suitable gravel. new texture map, maps, provided according commonly used type classification systems.