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| import ee | |
| import geemap | |
| import solara | |
| fireList = ["North Complex", "Dixie", "Cameron Peak", "August Complex"] | |
| selected_fire = solara.reactive([fireList[0]]) | |
| dNBRvisParams = {'min': 0.0,'max': 0.8, 'palette': ['green', 'yellow','orange','red']} | |
| class Map(geemap.Map): | |
| def __init__(self, **kwargs): | |
| super().__init__(**kwargs) | |
| self.add_ee_data() | |
| self.add("layer_manager") | |
| self.add("inspector") | |
| def add_ee_data(self): | |
| # Add North Complex image | |
| north_complex_bb = ee.Geometry.BBox(-121.616097, 39.426723, -120.668526, 40.030845) | |
| self.north_complex = self.calc_nbr('2020-08-15', '2020-08-16', '2020-09-15', '2020-09-16', north_complex_bb) | |
| # Add Dixie image | |
| dixie_bb = ee.Geometry.BBox(-121.680467, 39.759303, -120.065477, 40.873387) | |
| self.dixie = self.calc_nbr('2021-07-12', '2021-07-13', '2021-09-15', '2021-09-16', dixie_bb) | |
| # Add Cameron Peak image | |
| cam_peak_bb = ee.Geometry.BBox(-106.014784, 40.377907, -105.116651, 40.822094) | |
| self.cam_peak = self.calc_nbr('2020-08-12', '2020-08-13', '2020-09-12', '2020-09-13', cam_peak_bb) | |
| # Add August Complex image | |
| aug_complex_bb = ee.Geometry.BBox(-123.668726, 39.337654, -122.355860, 40.498304) | |
| self.aug_complex = self.calc_nbr('2020-08-15', '2020-08-16', '2020-11-15', '2020-11-16', aug_complex_bb) | |
| # Visualization parameters | |
| self.dNBRvisParams = dNBRvisParams | |
| def calc_nbr(self, pre_start, pre_stop, post_start, post_stop, bbox): | |
| PREgoesCMI = ee.ImageCollection('NOAA/GOES/17/MCMIPF').filter(ee.Filter.date(pre_start, pre_stop)).mean() | |
| POSTgoesCMI = ee.ImageCollection('NOAA/GOES/17/MCMIPF').filter(ee.Filter.date(post_start, post_stop)).mean() | |
| preNBR = PREgoesCMI.select(['CMI_C03','CMI_C06']).normalizedDifference(['CMI_C03', 'CMI_C06']).toFloat().rename('NBR') | |
| postNBR = POSTgoesCMI.select(['CMI_C03','CMI_C06']).normalizedDifference(['CMI_C03', 'CMI_C06']).toFloat().rename('NBR') | |
| dNBR = preNBR.subtract(postNBR).select('NBR') | |
| dNBRclipped = dNBR.clip(bbox) | |
| return dNBRclipped | |
| def Page(): | |
| map_instance = Map(element_id="map") | |
| def update_map(selected_fire): | |
| map_instance.clear_layers() | |
| if selected_fire == "North Complex": | |
| map_instance.addLayer(map_instance.north_complex, map_instance.dNBRvisParams, 'North Complex GOES NBR', True) | |
| elif selected_fire == "Dixie": | |
| map_instance.addLayer(map_instance.dixie, map_instance.dNBRvisParams, 'Dixie Complex GOES NBR', True) | |
| elif selected_fire == "Cameron Peak": | |
| map_instance.addLayer(map_instance.cam_peak, map_instance.dNBRvisParams, 'Cameron Peak GOES NBR', True) | |
| elif selected_fire == "August Complex": | |
| map_instance.addLayer(map_instance.aug_complex, map_instance.dNBRvisParams, 'August Complex GOES NBR', True) | |
| with solara.Column(style={"min-width": "500px"}): | |
| map_widget = Map.element( | |
| center=[40, -100], | |
| zoom=4, | |
| height="600px", | |
| ) | |
| solara.Select(label="Wildfire Case Study", value=selected_fire, values=fireList, on_value=update_map) | |
| solara.Markdown(f"**Selected**: {selected_fire.value}") | |