Filters: Tags: {"scheme":"USGS Geographic Names Information System"} (X) > Types: Map Service (X) > partyWithName: Matthew A Struckhoff (X)

Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions Shapefile (2) Types Downloadable (2) OGC WFS Layer (2) OGC WMS Layer (2) Shapefile (2) Citation (1) Contacts U.S. Geological Survey U.S. Geological Survey - ScienceBase Donald E Tillitt Columbia Environmental Research Center Leanne Hanson More... Categories Data (2) Tag Types Place (5) Tags (with Scheme=USGS Geographic Names Information System) pacific ocean (2) palmyra atoll (2) northern line islands (1) View Results as: JSON ATOM CSV

Orthoimagery and elevation data derived from UAS imagery for Palmyra Atoll, USA 2016-GCPs 2016 The data provide location and data quality information for ground control points (GCP) deployed at Palmyra Atoll for acquisition of imagery using small unoccupied aerial systems (sUAS) in October 2016. Thales ProMark 3 handheld geographic positioning systems (GPS) were used as both a local base station and to record locations of individual GCPs, with occupancy times of approximately 30 minutes per GCP. Location data for GCPs were post-processed against base station data using Mobile Mapper Office software to yield local position accuracy of approximately 0.1 m. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Northern Line Islands, Pacific Ocean, Palmyra Atoll, biota, elevation, All tags... environment, imageryBaseMapsEarthCover, marine ecosystem, reef ecosystem, terrestrial ecosystem, Fewer tags XRF samples Palmyra Atoll 2008 and 2010 Soils and organismal tissue from known and potential sources of contamination at Palmyra Atoll were measured for concentrations of 13 elements using a hand-held X-Ray Flourometer (XRF). Measured elements include; Lead (PB), Arsenic (As), Cobalt (Co), Cromium (Cr), Copper (Cu), Antimony (Sb), Iron (Fe), Titanium (Ti), Zinc (Zn), Nickel (Ni), Manganese (Mn), Sulphur (S) and Phosphorous (P). Concentrations of other elements were excluded because they were below the limit of detection or were sporadically detected; these include Tin (Sn), Cadmium (Cd), Silver (Ag), Strontium (Sr), Ruthenium (Rb), Selenium (Se), Mercury (Hg), Vanadium (V), Scantium (Sc), Calcium (Ca), Potassium (K), and Chlorine (Cl). Attributes for... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Pacific Ocean, Palmyra Atoll, U.S. Navy, World War II, contamination, All tags... structures, Fewer tags