Found 2270 datasets matching "survey-sampling".
-
This layer is intended to represent the geographic extent of NOAA Fisheries’ U.S. West Coast Groundfish Bottom Trawl Survey. The U.S. West Coast Groundfish Bottom Trawl Survey started in 1998 and...
Search relevance: 82.18 | Views last month: 0 -
Small-vessel Survey and Auction Sampling to Estimate Growth and Maturity of Eteline Snappers and Improve Data-Limited Stock Assessments. This biosampling project allows for the expansion of the...
Search relevance: 79.50 | Views last month: 0 -
These data are the trackline from the seafloor photograph and video survey conducted September 2004 using the mini-SeaBOSS sampling system on the R/V Rafael in Boston Harbor and the harbor...
Search relevance: 73.35 | Views last month: 0 -
A geophysical and geological survey was conducted at the mouth of the Connecticut River from Old Saybrook to Essex, Connecticut, in September 2012. Approximately 230 linear kilometers of digital...
Search relevance: 70.93 | Views last month: 0 -
A digital representation of the watersheds of 43 sites on large river systems sampled by the National Stream Quality Accounting Network (NASQAN) of the U. S. Geological Survey (USGS) in 2000 was...
Search relevance: 70.08 | Views last month: 0 -
This report describes the person-level sampling weight calibration procedures used on the 2011 National Survey on Drug Use and Health (NSDUH).
Search relevance: 59.86 | Views last month: 0 -
Collection of tabular data sets (.csv) containing year-specific proposed sampling points within inland waterbodies of the Anchorage, Alaska municipality. In 2023 and 2024, proposed sample sites...
Search relevance: 59.18 | Views last month: 1 -
This report describes the questionnaire dwelling unit-level and person pair-level sampling weight calibration procedures used on the 2011 National Survey on Drug Use and Health (NSDUH).
Search relevance: 57.76 | Views last month: 0 -
This report describes the questionnaire dwelling unit-level and person pair-level selection and sampling weight calibration procedures used on the 2012 National Survey on Drug Use and Health (NSDUH).
Search relevance: 57.38 | Views last month: 0 -
This report describes the person-level sampling weight calibration procedures used on the 2012 National Survey on Drug Use and Health (NSDUH). The report describes the practical aspects of...
Search relevance: 56.77 | Views last month: 0 -
The report addresses the following topics relating to data collection for the 2016 NSDUH: Sampling and Counting and Listing Operations, Data Collection Staffing,Preparation of Survey Materials,...
Search relevance: 55.98 | Views last month: 0 -
These data were collected under a cooperative agreement with the Massachusetts Office of Coastal Zone Management (CZM) and the U.S. Geological Survey (USGS), Coastal and Marine Geology Program,...
Search relevance: 55.78 | Views last month: 0 -
Collection of benthic infauna and epifauna used a 0.04 m2 Ted Young Modified Van Veen grab. Three replicate benthic samples were collected at 23 sites to total 69 samples in Year 1. The samples...
Search relevance: 52.65 | Views last month: 0 -
Assessing the distribution and abundance of both predator and prey (forage) fish species is a cornerstone of ecosystem-based based fishery management, and supports decision making that considers...
Search relevance: 52.50 | Views last month: 0 -
This report contains a brief review of the sampling weight calibration methodology used for the 2018 National Survey on Drug Use and Health (NSDUH). This report also lists detailed documentation...
Search relevance: 52.48 | Views last month: 1 -
This report contains a brief review of the sampling weight calibration methodology used for the 2017 National Survey on Drug Use and Health (NSDUH). This report also lists detailed documentation...
Search relevance: 52.40 | Views last month: 0 -
Assessing the distribution and abundance of both predator and prey (forage) fish species is a cornerstone of ecosystem-based fishery management and supports decision making that considers food-web...
Search relevance: 52.24 | Views last month: 2