Navigation methodolody for network discovery of events:
- UT = upstream with tributaries navigation
- UM = upstream mainstem navigation
- DM = downstream mainstem navigation
- DD = downstream with divergences navigation
- PP = point-to-point mainstem navigation
- PPALL = point-to-point mainstem navigation with all streams between
- UTNMD = upstream with tributaries no minor divergences navigation
search_type is a JSON Structure definition published by EPA — U.S. Environmental Protection Agency. It conforms to the https://json-structure.org/meta/core/v0/# meta-schema.
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