Add forecast classes by peanutfun · Pull Request #1115 · CLIMADA-project/climada_python

peanutfun · 2025-11-21T17:26:10Z

Changes proposed in this PR:

Add forecast variants for Hazard and Impact.
Adapt ImpactCalc to return ImpactForecast when needed.
Add tests.
Add tutorial for forecast data.

This PR resolves a major portion of #1118. Note that sub-tasks have been marked as completed when merged into this branch.

PR Author Checklist

PR Reviewer Checklist

* define base class * add init test * Fix #1127 --------- Co-authored-by: Valentin Gebhart <valentin.gebhart@usys.ethz.ch> Co-authored-by: Lukas Riedel <34276446+peanutfun@users.noreply.github.com>

* Add ImpactForecast * Add unit tests

* Create hazardForecast base class * Update datetime to timedelta for lead_time * Add tests --------- Co-authored-by: luseverin <luca.severino@usys.ethz.ch> Co-authored-by: Lukas Riedel <34276446+peanutfun@users.noreply.github.com>

* change leadtime to timedelta * adapt impactforecast docstrings and tests * Remove stray comment --------- Co-authored-by: Lukas Riedel <34276446+peanutfun@users.noreply.github.com>

* Add HazardForecast.select test --------- Co-authored-by: luseverin <luca.severino@usys.ethz.ch> Co-authored-by: Lukas Riedel <34276446+peanutfun@users.noreply.github.com>

* Add test for hazardForecast.concat * Skip HazardForecast.concat test --------- Co-authored-by: luseverin <luca.severino@usys.ethz.ch> Co-authored-by: Lukas Riedel <34276446+peanutfun@users.noreply.github.com>

* Add test for ImpactForecast.select * minor test modification --------- Co-authored-by: Evelyn Mühlhofer <evelyn.muehlhofer@meteoswiss.ch>

* Add test stub for ImpactForecast.concat * Use correct command for skipping a test * Fix merge issue

* Add data shape check for HazardForecast, ImpactForecast

Adapt Hazard from_hdf5 and write_hdf5 to forecast attributes

* Add extended select impact forecast test * Add extended hazard forecast test --------- Co-authored-by: Chahan Kropf <chahan.kropf@posteo.com> Co-authored-by: Lukas Riedel <34276446+peanutfun@users.noreply.github.com>

* Return impactForecast object in _return_impact * Return impactForecast object in _return_empty * Add full impactcalc test for impactForecast * Raise value error when computing impact with impact forecast without saving impact matrix * Cosmetics: Improve error message, move test to own class * Write nans for eai_exp and aai_agg when forecast is used --------- Co-authored-by: luseverin <luca.severino@usys.ethz.ch> Co-authored-by: Chahan Kropf <chahan.kropf@posteo.com> Co-authored-by: Lukas Riedel <34276446+peanutfun@users.noreply.github.com>

* add idx boolean selection for member and leadtime * Add test for weird data types --------- Co-authored-by: Lukas Riedel <34276446+peanutfun@users.noreply.github.com>

* Add ImpactForecast.select --------- Co-authored-by: Lukas Riedel <34276446+peanutfun@users.noreply.github.com>

* add HazardForecast.select and extent test --------- Co-authored-by: Eliane Kobler <ekobler@student.ethz.ch> Co-authored-by: Lukas Riedel <34276446+peanutfun@users.noreply.github.com>

* Add HazardForecast.concat

Add min/mean/max methods --------- Co-authored-by: luseverin <luca.severino@usys.ethz.ch> Co-authored-by: Chahan Kropf <chahan.kropf@posteo.com> Co-authored-by: Lukas Riedel <34276446+peanutfun@users.noreply.github.com>

* Make Impact.concat support ImpactForecast * Add tests

* implement changes in Impact IO and ImpactForecast IO * Update tests * Fix small issue when reading H5 for ImpactForecast --------- Co-authored-by: Lukas Riedel <34276446+peanutfun@users.noreply.github.com>

* Add quantile and median for hazard and impact forecast * Review --------- Co-authored-by: luseverin <luca.severino@usys.ethz.ch> Co-authored-by: Chahan Kropf <chahan.kropf@posteo.com> Co-authored-by: Lukas Riedel <34276446+peanutfun@users.noreply.github.com>

…ython into forecast-class

* Add impact forecast tutorial * Add 'dim' argument to reductions * Update tests --------- Co-authored-by: Lukas Riedel <34276446+peanutfun@users.noreply.github.com> Co-authored-by: luseverin <luca.severino@usys.ethz.ch> Co-authored-by: Evelyn Mühlhofer <evelyn.muehlhofer@meteoswiss.ch> Co-authored-by: Chahan Kropf <chahan.kropf@posteo.com>

…ython into forecast-class

climada/engine/test/test_impact_calc.py

peanutfun · 2026-02-04T09:00:15Z

@Evelyn-M How was the fcst_icon_seamless_2024-06-18_12_00.nc test file created? I see that it's in a different CRS than the "latest" example files downloaded in the tutorial.

Evelyn-M · 2026-02-04T09:53:39Z

@Evelyn-M How was the fcst_icon_seamless_2024-06-18_12_00.nc test file created? I see that it's in a different CRS than the "latest" example files downloaded in the tutorial.

I downloaded it from the meteoswiss-internal data storage, since the API only permits downloads until -24 hrs.

peanutfun · 2026-02-05T12:39:36Z

So it had been reprojected? Does MCH store the data differently than OGD? I am just wondering because it might be important to highlight the caveats when importing datasets with varying CRS and coordinate specifications.

Evelyn-M · 2026-02-05T12:54:38Z

I suppose so, yes. One is the MCH grid commonly used internally for national gridded forecast products, and the OGD data has a different grid and a much larger rectangular extent around Switzerland.

peanutfun and others added 21 commits November 21, 2025 18:23

Forecast templates

ad819f2

Clean slate for Forecast

abafba4

1127 - Forecast base class init (#1167)

1688641

* define base class * add init test * Fix #1127 --------- Co-authored-by: Valentin Gebhart <valentin.gebhart@usys.ethz.ch> Co-authored-by: Lukas Riedel <34276446+peanutfun@users.noreply.github.com>

Impact forecast class (#1168)

d66c8dd

* Add ImpactForecast * Add unit tests

Hazard forecast class (#1171)

35f9517

* Create hazardForecast base class * Update datetime to timedelta for lead_time * Add tests --------- Co-authored-by: luseverin <luca.severino@usys.ethz.ch> Co-authored-by: Lukas Riedel <34276446+peanutfun@users.noreply.github.com>

Change leadtime from datetime to timedelta (#1172)

54bb592

* change leadtime to timedelta * adapt impactforecast docstrings and tests * Remove stray comment --------- Co-authored-by: Lukas Riedel <34276446+peanutfun@users.noreply.github.com>

Hazard forecast test select (#1175)

4aaad4e

* Add HazardForecast.select test --------- Co-authored-by: luseverin <luca.severino@usys.ethz.ch> Co-authored-by: Lukas Riedel <34276446+peanutfun@users.noreply.github.com>

Hazard forecast concat test (#1178)

d04fecf

* Add test for hazardForecast.concat * Skip HazardForecast.concat test --------- Co-authored-by: luseverin <luca.severino@usys.ethz.ch> Co-authored-by: Lukas Riedel <34276446+peanutfun@users.noreply.github.com>

Check if Impact.select works on ImpactForecast (#1170)

d3cc83a

* Add test for ImpactForecast.select * minor test modification --------- Co-authored-by: Evelyn Mühlhofer <evelyn.muehlhofer@meteoswiss.ch>

Check if Impact.concat works on ImpactForecast (#1174)

a386d22

* Add test stub for ImpactForecast.concat * Use correct command for skipping a test * Fix merge issue

adapt from_hdf5 and write_hdf5

34612c5

Check sizes of forecast data vs. Hazard and Impact (#1180)

8a63b43

* Add data shape check for HazardForecast, ImpactForecast

implement code review

e123b7b

add comment to test

9ce7f73

Merge pull request #1181 from CLIMADA-project/adapt_hdf5_write_from

48b6d40

Adapt Hazard from_hdf5 and write_hdf5 to forecast attributes

Forecast/select extended tests (#1182)

64da484

* Add extended select impact forecast test * Add extended hazard forecast test --------- Co-authored-by: Chahan Kropf <chahan.kropf@posteo.com> Co-authored-by: Lukas Riedel <34276446+peanutfun@users.noreply.github.com>

add idx boolean selection for member and leadtime (#1183)

9d6fef9

* add idx boolean selection for member and leadtime * Add test for weird data types --------- Co-authored-by: Lukas Riedel <34276446+peanutfun@users.noreply.github.com>

Add select to ImpactForecast (#1188)

b17bcc9

* Add ImpactForecast.select --------- Co-authored-by: Lukas Riedel <34276446+peanutfun@users.noreply.github.com>

Add select method to HazardForecast (#1185)

302be63

* add HazardForecast.select and extent test --------- Co-authored-by: Eliane Kobler <ekobler@student.ethz.ch> Co-authored-by: Lukas Riedel <34276446+peanutfun@users.noreply.github.com>

Make Impact.concat support ImpactForecast

85b92ef

peanutfun force-pushed the forecast-class branch from 85b92ef to 302be63 Compare December 10, 2025 13:29

peanutfun and others added 8 commits December 10, 2025 14:32

Add HazardForecast.concat (#1184)

52edc45

* Add HazardForecast.concat

Support ImpactForecast.concat (#1192)

bb99794

* Make Impact.concat support ImpactForecast * Add tests

Add hdf5 IO for ImpactForecast (#1190)

0e7857f

* implement changes in Impact IO and ImpactForecast IO * Update tests * Fix small issue when reading H5 for ImpactForecast --------- Co-authored-by: Lukas Riedel <34276446+peanutfun@users.noreply.github.com>

Merge branch 'forecast-class' of github.com:CLIMADA-project/climada_p…

d84db1e

…ython into forecast-class

Merge branch 'forecast-class' of github.com:CLIMADA-project/climada_p…

99e82a1

…ython into forecast-class

peanutfun changed the title ~~Forecast classes~~ Add forecast classes Jan 12, 2026

peanutfun marked this pull request as ready for review January 12, 2026 13:54

peanutfun requested review from chahank and emanuel-schmid as code owners January 12, 2026 13:54

peanutfun commented Jan 12, 2026

View reviewed changes

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peanutfun added 2 commits January 12, 2026 14:57

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38df263

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a0fd081

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Add forecast classes#1115

Add forecast classes#1115
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