Rainfall records from Harz mountains

Notice: The current layout is optimized for desktop view. We are actively working on developing a mobile version.

Quickstart

1.
Move zoom lens
  • Move the dashed rectangle to enlarge part of the month you are asked to digitize to increase readability.
  • Shift the zoom lens again once your are finished with a set of days.
2.
Fill in daily bubbles
  • Type the daily values into the bubbles.
  • %, – or an empty field is to be interpreted as 0 mm rainfall.
  • Deactivate a bubble if you can't read the value.
3.
Transcribe sum
  • Enter the monthly sum located at the bottom of the scan into the corresponding input field.
  • The transferred daily sum may not match the cumulative daily sum. In that case, please disable the sum field to proceed.
4.
Submit data
  • Optionally, leave a note if there is anything noteworthy.
  • Finally, you can submit the data.
Detailed instructions if needed
  1. 1. Selecting the month
    • Use the blue arrow to move the zoom lens to the month you are asked to digitize. The month to digitize is displayed on the right-hand side.
    • The zoom will show approximately ten rows (representing days) with increased size next to the input area. This enhances readability and helps prevent mixing up columns.
    • Once you have finished, shift the zoom lens to the next set of days.
    • Despite our efforts, the zoom might not always be perfectly aligned or may move outside the expected range. If this occurs, use the reset button to reposition the zoom lens.
    • If you are asked to digitize a month that is not displayed, please contact us.
  2. 2. Transcribe data
    • Type the value of each day into the corresponding input field. You can use a comma or a dot to represent a floating point. A percent sign (%), a dash (–), or empty fields indicate 0 mm of precipitation.
    • If a value is compromised for any reason, deactivate the field by unchecking it. You can also use the x-key for this.
    • In addition to the daily values, transcribe the monthly sum located near the bottom of the data sheet. This serves as an additional check, as all daily values should add up to this sum.
    • If the monthly sum appears to be incorrect, you can deactivate the field. We will review these cases during our post-processing routine.
  3. 3. Check the data
    • Any flawed input should be flagged by field deactivation. However, please compare your transcribed values with the original ones to ensure the best data quality, especially if you deactivated the monthly sum.
    • Since each month's data will be transcribed at least twice, you should not worry excessively about a single incorrect entry.
  4. 4. Submit the data
    • If you noticed anything unusual with the data (e.g., missing entries or annotations), use the comment area to inform us. We will evaluate this during post-processing.
    • Please use the comment area only for digitization-relevant comments. If you have thoughts regarding the website or the project, contact us via email.
    • Finally, submit the data by using the upload button.

If anything remains unclear, please refer to the FAQ.