The BioData Retrieval System uses filters to help you construct the data set that you are looking for.
  • The user starts with the entire data set and then reduces it in a stepwise fashion to the exact content they are looking for.
  • This is in contrast to starting with no data and adding data according to criteria you specify. This is a subtle, but important difference because your data set gets smaller as you filter it not larger as you search.
  • The individual filter criteria sections function very similarly, but vary in their available options

When creating complex - or even simple - filter sets...
  • you can save and upload previously created filter sets
  • this feature can save a lot of re-work and allow you to aid colleagues in downloading the exact same data that you did without sending large files back and forth

Filtering by Biological Community

Filtering by Sample Type

Filtering by State

Filtering by County

Filtering by Latitude-Longitude

Filtering by Hydrologic Unit

Filtering by Ecoregion

Filtering by USGS Site

Filtering by Site Characteristics

Filtering by Temporal Criteria

Filtering by Organization/Program

Using Taxon-Specific Filters

Using Sample-specific Filters