Field tool · Version 1.1.0
Explore a lake’s temperature and oxygen profile.
Paste or enter depth readings, compare two measured variables, inspect adjacent temperature changes, and keep the original data table beside the visual.
- Data handling
- Stays in your browser
- Output
- SVG profiles, table, CSV, print
- Boundary
- No safety or treatment classification
Confirm the prerequisite
Review the governing method before entering or interpreting data.
Return to the source guide
Shared route boundary
Does not classify turnover, habitat safety, cause, compliance, or treatment need.
Profile context
Record where and when these readings were collected.
Data origin: blank
Enter readings
Keep every measured depth. Replicates are not averaged.
| Depth (m) | Temperature (°C) | Dissolved oxygen (mg/L) | Row |
|---|---|---|---|
Paste rows from a field sheet
Paste comma- or tab-separated columns in this order: depth, temperature, dissolved oxygen. A header row is optional.
Explore the profile
See how measured values changed with depth.
Start with a blank profile or load the clearly marked synthetic example.
Enter at least one valid depth with temperature, dissolved oxygen, or both to draw the profile.
Save the work and continue
Carry the result into its governed record and broader workflow; these links do not approve the work.
Open the profile field sheet Keep station context, instrument QA, replicates, and interpretation notes with the cast.
Continue the oxygen and fish-habitat path Carry profile evidence into ammonia, habitat, and response planning.
Shared route boundary
Does not classify turnover, habitat safety, cause, compliance, or treatment need.
Transparent calculations, bounded interpretation.
Depth entered in feet is multiplied by 0.3048. Temperature entered in Fahrenheit is converted with (°F − 32) × 5/9. Adjacent temperature change uses the same ordered temperature series shown in the chart. Duplicate depths remain visible, while intervals touching them are excluded because the tool does not silently select a representative replicate. The tool does not interpolate values or convert dissolved oxygen to percent saturation.
- EPA manuals used in National Aquatic Resource SurveysField protocol context
- USGS National Field Manual: TemperatureTemperature measurement guidance
- USGS National Field Manual: Dissolved OxygenDissolved-oxygen measurement guidance
Controlled preview. Internal technical review is complete. Independent review is pending, so this artifact remains available for review but is excluded from search-engine discovery. Next review: 2026-10-15.