# TempAqua — Intermittent streams mapping

> Intermittent streams mapping (iPhone/iPad app by Ecole Polytechnique Federale de Lausanne EPFL.)

- Source: https://appshunter.io/ios/app/tempaqua/id1576484945 (this page in markdown: same URL + `.md`)
- Developer: [Ecole Polytechnique Federale de Lausanne EPFL](https://appshunter.io/developer/360526040)
- Category: Productivity, Navigation
- Price: Free
- Age rating: 4+
- Requires: iOS 14.5 · 3 MB
- Languages: English
- Released: 2021-07-15
- Data updated: 2026-06-10
- User reviews in markdown: https://appshunter.io/ios/app/tempaqua/id1576484945/reviews.md

## What is TempAqua?

The TempAqua application facilitates mapping of intermittent streams. It is designed to make field work more efficient and less error-prone. 

You collect the data in the field and then export it directly to the database. The application helps you navigating among mark-points, record the stream-related data, including photos and videos. The application is configurable; You import mark-points, stream network, and catchment shapes from geo-json files. We (the application developers) do not see or store your data.

The mapping mechanics is fairly simple. You navigate to interested mark-points based on your current location and imported catchment definition. You enter in the app the the data collected in these locations, like current stream state, discharge, comment, photos, or even movies of the flowing stream. After all, you click a button to simply export the survey to the database. 

This application was developed as part of the TempAqua research project conducted at EPFL. In this project we investigate intermittent streams. Contact us (izabela.bujak@epfl.ch or jana.vonfreyberg@epfl.ch) for more information.


## Version history (last 4 releases)

### 2.3 — 2021-08-29

This update includes the following improvements and bug fixes:
- better display of the reconstructed stream on the map
- added view displaying past surveys
- fixed display of catchments borders and stream networks

### 2.2 — 2021-08-26

This version comes with bug fixes and improvements:
- You can now select catchments to display on the map directly from the settings view!
- Markers on the map are displayed even if they overlap each other!
- The videos are automatically compressed to speed up the export process.
- The app is synced with the remote database just after the mapping survey is exported.

### 2.1 — 2021-07-23

This version introduces improvements and bug fixes:
- you can now refresh GPS coordinates in the already stored observations
- app reduces the number of points drawn on the map 
- app fixes how lines are drawn on the map to indicate stream state
- app removes old photos from the database when an observation is deleted or a survey is exported

### 2.0 — 2021-07-15

No release notes.

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All apps by Ecole Polytechnique Federale de Lausanne EPFL: https://appshunter.io/developer/360526040

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*