| Identifier | 2020-670-FA | ||||||||
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| Alternate names | 2022 Ofu Fieldwork | ||||||||
| Also known as | Ofu USGS-NPS Study | ||||||||
| Purpose | Investigate geophysical controls on algal outbreaks over NPS coral reefs | ||||||||
| Location | Ofu, American Samoa | ||||||||
| Info derived | Investigate geophysical controls on algal outbreaks over NPS coral reefs | ||||||||
| Comments | Entries for this field activity are based on entries from Field Activity 2020-601-FA Entries for this field activity are based on entries from Field Activity 2020-620-FA. | ||||||||
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| Vehicles | None |
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| Scuba operations | Yes |
| Organization |
2885 Mission Street
Santa Cruz, CA95060
(831) 460-7401
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| Principal investigators | Ferdinand K Oberle | ||||
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| Affiliate principal | Eric Brown (NPS) |
| Data category: | Sampling, Time Series, Imagery, Environmental Data, Electro-Magnetic |
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| Data type: | Chemistry, Mooring (physical oceanography), Other Imagery, Wave, Tide, Temperature, Radon, Current, Conductivity, Resistivity |
| Equipment | Usage description | Data types | Datasets |
|---|---|---|---|
| sampling equipment | Biology, Chemistry, Geology, Experiments (biological), Sediment Properties | 1 | |
| instrumentmooring | Geology, Mooring (physical oceanography) | (no data reported) | |
| FLIR thermal camera | Other Imagery | (no data reported) | |
| wavegauge | Wave | (no data reported) | |
| wave/tide gauge | Tide, Wave | (no data reported) | |
| radonmonitor | Radon | (no data reported) | |
| current meter | Current | (no data reported) | |
| CT sensor | Conductivity, Temperature | (no data reported) | |
| Supersting R8 | Resistivity | (no data reported) |
| Dataset name | Equipment | Description | Dataset contact |
|---|---|---|---|
| Water and algal chemistry measurements collected from the National Park Service's National Park of American Samoa (NPS-NPSA) Ofu Island unit | sampling equipment | Geochemical analysis of coastal springs and possible source waters were conducted in the National Park Service's National Park of American Samoa (NPS-NPSA) Ofu Island unit. Water samples were analyzed for dissolved nutrients, nitrate isotopes (delta-18-O and delta-15-N). Algae samples were collected and analyzed for delta-15-N and delta-13-C values. | Nancy G Prouty |
