Created
September 19, 2024 23:53
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Download Landsat imagery from Earth Engine
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{ | |
"cells": [ | |
{ | |
"cell_type": "code", | |
"execution_count": 1, | |
"metadata": {}, | |
"outputs": [], | |
"source": [ | |
"import ee\n", | |
"import geemap" | |
] | |
}, | |
{ | |
"cell_type": "code", | |
"execution_count": null, | |
"metadata": {}, | |
"outputs": [], | |
"source": [ | |
"geemap.ee_initialize()" | |
] | |
}, | |
{ | |
"cell_type": "code", | |
"execution_count": null, | |
"metadata": {}, | |
"outputs": [], | |
"source": [ | |
"m = geemap.Map()\n", | |
"m" | |
] | |
}, | |
{ | |
"cell_type": "code", | |
"execution_count": null, | |
"metadata": {}, | |
"outputs": [], | |
"source": [ | |
"dataset = ee.ImageCollection('LANDSAT/LC09/C02/T1_L2') \\\n", | |
" .filterDate('2024-01-01', '2024-09-01') \\\n", | |
" .filterBounds(ee.Geometry.Point(-115.0033, 36.0990)) \\\n", | |
" .sort('CLOUD_COVER') \\\n", | |
" .select(\"SR_B[1-7]\")" | |
] | |
}, | |
{ | |
"cell_type": "code", | |
"execution_count": null, | |
"metadata": {}, | |
"outputs": [], | |
"source": [ | |
"first_image = dataset.first()\n", | |
"\n", | |
"# Applies scaling factors.\n", | |
"def apply_scale_factors(image):\n", | |
" optical_bands = image.select('SR_B.').multiply(0.0000275).add(-0.2)\n", | |
" return image.addBands(optical_bands, None, True)\n", | |
"\n", | |
"first_image = apply_scale_factors(first_image)" | |
] | |
}, | |
{ | |
"cell_type": "code", | |
"execution_count": null, | |
"metadata": {}, | |
"outputs": [], | |
"source": [ | |
"m.addLayer(first_image, {'bands': ['SR_B4', 'SR_B3', 'SR_B2'], 'min': 0, 'max': 0.3}, 'First image')" | |
] | |
}, | |
{ | |
"cell_type": "code", | |
"execution_count": null, | |
"metadata": {}, | |
"outputs": [], | |
"source": [ | |
"first_image" | |
] | |
}, | |
{ | |
"cell_type": "code", | |
"execution_count": null, | |
"metadata": {}, | |
"outputs": [], | |
"source": [ | |
"geemap.download_ee_image(first_image, \"LC09_039035_20240708_90m.tif\", dtype=\"float32\", scale=90)" | |
] | |
} | |
], | |
"metadata": { | |
"kernelspec": { | |
"display_name": "geo", | |
"language": "python", | |
"name": "python3" | |
}, | |
"language_info": { | |
"codemirror_mode": { | |
"name": "ipython", | |
"version": 3 | |
}, | |
"file_extension": ".py", | |
"mimetype": "text/x-python", | |
"name": "python", | |
"nbconvert_exporter": "python", | |
"pygments_lexer": "ipython3", | |
"version": "3.11.9" | |
} | |
}, | |
"nbformat": 4, | |
"nbformat_minor": 2 | |
} |
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