mrcschwering / prevailing-winds

Webapp for planning your sailing holidays. Interactive map showing windroses of historic winds. Could also be useful for surfers, paragliders, pilots and more.

Hi there 👋

My name is Marc Schwering. My original background is Molecular Biotechnology. Throughout my career I have changed from wetlab, to data science, to software development. The past years I have built software for Bayer's Pharma R&D. Now I am working as a freelancer. Apart from that I like sailing, travelling, Muay Thai, and in general DYI stuff. So, you might find some related repositories for that :)

prevailing-winds's Issues

Azimut bearings instead of traditional wind directions?

Add great circle path feature?

• for planning passages#
• click from coordinate A to coordinate B
• draw great circle path from A to B
• give reasonable amount of waypoint coordinates for route
• https://en.wikipedia.org/wiki/Great-circle_navigation#:~:text=Compute%20the%20great%20circle%20route,is%20s12%20%3D%2018743%20km.

Issue with Buttons and Icons

opened: grommet/grommet#6144

if fixed, upade yarn lock

Feature: add wind summary

• if I just want to know how much wind there will be
• e.g. 50% BFT 4, dont care about direction
• kind of hard to see from the windrose alone

Gets confused when you click on long ~ 175 ?

Very interesting app, thanks for writing it.

I seem to have found, what I suspect, is a minor defect. I found that the app seems to get confused when you do the following.

1. Visit https://www.prevailing-winds.de/ using recent FF or Chrome on Windows
2. Zoom map out and scroll so that New Zealand is centre of the panel
3. Zoom in so that NZ fills most of the visible panel
4. Click on Wellington (which is Longitude East 174)
5. The text showing where you have clicked reads "41° 46' 16'' S - 183° 7' 12'' W" and the message "only longitudes -180 to 180 are covered" appears.
6. Scroll map so that Paris (in France) is visible , click on Paris (Paris is longitude East 2)
7. The text showing where you have clicked reads "48° 24' 0'' N - 358° 3' 59'' W" and the message "only longitudes -180 to 180 are covered" continues to be displayed.
8. Scroll map so that Los Angeles (in USA) is visible, click on LA (LA is longitude West 118)
9. The text showing where you have clicked reads "33° 56' 36'' N - 476° 11' 29'' W" and the message "only longitudes -180 to 180 are covered" continues to be displayed.

If, after reloading page, instead of visiting Wellington first I go straight to Paris and then LA everything works as you would expect.

BTW I'm learning React at the moment and being able to read your frontend in the context of seeing the app run is very useful so thanks for that as well the entire app.

Try cloudflare pages deployment

• should be easier than my S3 setup
• docs: https://developers.cloudflare.com/pages/

styling issues on phone

Scrolling down in windrose tab, bottom part has white background (instead of gray)

Some iPhones keep the appbar weirdly big (to high height, takes almost half of the screen) when the map is open. Haven't figured out yet whether this is an iPhone version or browser thing.

check whether wind data is corrupted

There was an email from copernicus:

We are writing to you because you may have downloaded some corrupted ERA5 data from the Climate Data Store (CDS).

Some data was corrupted in the following ERA5 CDS catalogue entries (datasets):

• ERA5 hourly data on single levels from 1979 to present
• ERA5 hourly data on pressure levels from 1979 to present

361 corrupted fields, out of a total of 3.1 billion ERA5 fields, have been identified and replaced.

This corruption problem was resolved on 2021-04-14.

Users that have downloaded any of these affected fields prior to 2021-04-15, are recommended to re-download them.

TODO

• check whether any of my data is affected

Backend under prevailing-winds.de

Add backend endpoints to data.prevailing-winds.de.
I think I need to upload the AWS generated certificates to cloudflare for that somehow...

asd

Rainfall not intuitive

Better just show total rainfall per month in mm.

Windrose Icon not clear when in small layout

It's not clear that one has to click the windrose icon after selecting an area on the map.

• Maybe some kind of highlighting after the map area has been clicked?

Show windrose on initial page load?

Maybe chosing a random positon?

Feature request: time-resolved panels

To check for trends it would be helpful to have the option to get the data split per year and month with wind roses for each intervall.

Feature: add general weather stats as well

I think I have some more data which I could add as well, such as:

• pressure
• temperature
• precipitation

Could make a generic "weather" plot with temp distribution, mean pressure and precipitation.

BFT numbers wrong

I took the class labels 1-13 and not the BFT numbers 0-12