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nasaharvest / crop-mask

End-to-end workflow for generating high resolution cropland maps
Apache License 2.0
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Sudan Darfur data and mapping #387

Closed ivanzvonkov closed 1 month ago

ivanzvonkov commented 2 months ago

Datasets

This PR processes the latest data from CEO as of 2024-02-14 for Sudan Darfur.

The anonymized reference samples used in GEE are saved directly in maps/Sudan folder:

Reference Sample Distribution

I investigated label distributions across different regions and years here: https://github.com/nasaharvest/crop-mask/blob/update-Sudan-data/maps/Sudan/Darfur_2022_2023_label_distribution.ipynb Here's a summary table image

New 2022 Mask (V3)

I used 40% of points from GedarefDarfurAlJazirah2022 to train the model, and 60% for evaluation. The mask was created with this script: https://github.com/nasaharvest/crop-mask/blob/update-Sudan-data/maps/Sudan/Darfur_2022_mask The asset is stored here: https://code.earthengine.google.com/?asset=users/izvonkov/Sudan/Darfur2022_cropmask_v3 The script now outputs per region confusion matrices (unweighted by area) image

New 2023 Mask (V4)

Used 40% of points GedarefDarfurAlJazirah2023 to train model, and 60% for evaluation. Added more crop corrective labels to this one too. The mask was created with this script: https://github.com/nasaharvest/crop-mask/blob/update-Sudan-data/maps/Sudan/Darfur_2023_mask The asset is stored here: https://code.earthengine.google.com/?asset=users/izvonkov/Sudan/Darfur2023_cropmask_v4 Here are the confusion matrices for this one image Map has a little bit of trouble with West Darfur in this year.

Area Estimation + Confidence Interval in GEE

I thought it'd be convenient to compute area in GEE to speed up reporting. Initial script here: https://github.com/nasaharvest/crop-mask/blob/update-Sudan-data/maps/Sudan/Darfur_area_estimate This script could use a serious review

Area Estimate Output

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ivanzvonkov commented 2 months ago

Forgot to mention 2023 V4 now uses data starting from March 2023

hannah-rae commented 2 months ago

@ivanzvonkov Do you plan to update this with your new area estimation GEE code?