{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:01:39.055194", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2024-Oct-22_to_2024-Oct-26_97.5_35.0"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2024100002111}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "October 22 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 26 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 140521.32543978735}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["China"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": []}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 35.0}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 97.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "97.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 94.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 102.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 32.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 35.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[100.0, 31.75], [99.47, 31.97], [99.32, 32.32], [99.25, 32.35], [99.0, 32.25], [98.47, 32.47], [98.3, 32.88], [98.0, 32.75], [97.75, 32.85], [97.5, 32.75], [96.97, 32.97], [96.8, 33.38], [96.5, 33.25], [96.25, 33.35], [96.0, 33.25], [95.75, 33.35], [95.5, 33.25], [95.25, 33.35], [95.0, 33.25], [94.75, 33.35], [94.5, 33.25], [93.97, 33.47], [93.75, 34.0], [93.85, 34.25], [93.75, 34.5], [93.97, 35.03], [94.5, 35.25], [94.75, 35.15], [94.82, 35.18], [94.97, 35.53], [95.5, 35.75], [95.75, 35.65], [96.0, 35.75], [96.25, 35.65], [96.5, 35.75], [96.75, 35.65], [96.82, 35.68], [96.97, 36.03], [97.5, 36.25], [97.75, 36.15], [98.0, 36.25], [98.25, 36.15], [98.5, 36.25], [98.75, 36.15], [99.0, 36.25], [99.25, 36.15], [99.5, 36.25], [100.03, 36.03], [100.25, 35.5], [100.07, 35.07], [100.32, 35.18], [100.47, 35.53], [101.0, 35.75], [101.25, 35.65], [101.32, 35.68], [101.47, 36.03], [102.0, 36.25], [102.53, 36.03], [102.75, 35.5], [102.65, 35.25], [102.75, 35.0], [102.65, 34.75], [102.75, 34.5], [102.65, 34.25], [102.75, 34.0], [102.53, 33.47], [102.18, 33.32], [102.13, 33.2], [102.53, 33.03], [102.75, 32.5], [102.53, 31.97], [102.0, 31.75], [101.75, 31.85], [101.5, 31.75], [100.97, 31.97], [100.82, 32.32], [100.75, 32.35], [100.68, 32.32], [100.53, 31.97], [100.0, 31.75]], [[99.68, 34.68], [99.75, 34.65], [99.82, 34.68], [99.93, 34.93], [99.63, 34.8], [99.68, 34.68]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Tibetan-Plateau", "E.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-10-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[95.5, 34.25], [94.97, 34.47], [94.75, 35.0], [94.97, 35.53], [95.5, 35.75], [96.03, 35.53], [96.25, 35.0], [96.03, 34.47], [95.5, 34.25]]], [[[97.5, 35.75], [97.8, 35.63], [97.97, 36.03], [98.5, 36.25], [99.03, 36.03], [99.25, 35.5], [99.03, 34.97], [98.5, 34.75], [98.2, 34.88], [98.15, 34.75], [98.25, 34.5], [98.03, 33.97], [97.5, 33.75], [97.25, 33.85], [97.0, 33.75], [96.47, 33.97], [96.25, 34.5], [96.47, 35.03], [96.82, 35.18], [96.97, 35.53], [97.5, 35.75]]]]}, "2024-10-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[93.75, 34.5], [93.97, 35.03], [94.5, 35.25], [94.75, 35.15], [94.82, 35.18], [94.97, 35.53], [95.5, 35.75], [95.75, 35.65], [96.0, 35.75], [96.25, 35.65], [96.5, 35.75], [96.75, 35.65], [96.82, 35.68], [96.97, 36.03], [97.5, 36.25], [97.75, 36.15], [98.0, 36.25], [98.25, 36.15], [98.5, 36.25], [98.75, 36.15], [99.0, 36.25], [99.25, 36.15], [99.5, 36.25], [100.03, 36.03], [100.25, 35.5], [100.07, 35.07], [100.32, 35.18], [100.47, 35.53], [101.0, 35.75], [101.25, 35.65], [101.32, 35.68], [101.47, 36.03], [102.0, 36.25], [102.53, 36.03], [102.75, 35.5], [102.65, 35.25], [102.75, 35.0], [102.65, 34.75], [102.75, 34.5], [102.65, 34.25], [102.75, 34.0], [102.53, 33.47], [102.18, 33.32], [102.13, 33.2], [102.53, 33.03], [102.75, 32.5], [102.53, 31.97], [102.0, 31.75], [101.75, 31.85], [101.5, 31.75], [100.97, 31.97], [100.82, 32.32], [100.75, 32.35], [100.68, 32.32], [100.53, 31.97], [100.0, 31.75], [99.47, 31.97], [99.32, 32.32], [99.25, 32.35], [99.0, 32.25], [98.47, 32.47], [98.3, 32.88], [98.0, 32.75], [97.75, 32.85], [97.5, 32.75], [96.97, 32.97], [96.8, 33.38], [96.5, 33.25], [96.25, 33.35], [96.0, 33.25], [95.75, 33.35], [95.5, 33.25], [95.25, 33.35], [95.0, 33.25], [94.75, 33.35], [94.5, 33.25], [93.97, 33.47], [93.75, 34.0], [93.85, 34.25], [93.75, 34.5]], [[99.75, 34.65], [99.82, 34.68], [99.93, 34.93], [99.63, 34.8], [99.68, 34.68], [99.75, 34.65]]]]}, "2024-10-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[93.75, 34.5], [93.97, 35.03], [94.5, 35.25], [94.75, 35.15], [94.82, 35.18], [94.97, 35.53], [95.5, 35.75], [95.75, 35.65], [96.0, 35.75], [96.25, 35.65], [96.5, 35.75], [96.75, 35.65], [96.82, 35.68], [96.97, 36.03], [97.5, 36.25], [97.75, 36.15], [98.0, 36.25], [98.25, 36.15], [98.5, 36.25], [98.75, 36.15], [99.0, 36.25], [99.25, 36.15], [99.5, 36.25], [100.03, 36.03], [100.25, 35.5], [100.07, 35.07], [100.32, 35.18], [100.47, 35.53], [101.0, 35.75], [101.25, 35.65], [101.32, 35.68], [101.47, 36.03], [102.0, 36.25], [102.53, 36.03], [102.75, 35.5], [102.65, 35.25], [102.75, 35.0], [102.65, 34.75], [102.75, 34.5], [102.65, 34.25], [102.75, 34.0], [102.53, 33.47], [102.18, 33.32], [102.13, 33.2], [102.53, 33.03], [102.75, 32.5], [102.53, 31.97], [102.0, 31.75], [101.75, 31.85], [101.5, 31.75], [100.97, 31.97], [100.82, 32.32], [100.75, 32.35], [100.68, 32.32], [100.53, 31.97], [100.0, 31.75], [99.47, 31.97], [99.32, 32.32], [99.25, 32.35], [99.0, 32.25], [98.47, 32.47], [98.3, 32.88], [98.0, 32.75], [97.75, 32.85], [97.5, 32.75], [96.97, 32.97], [96.8, 33.38], [96.5, 33.25], [96.25, 33.35], [96.0, 33.25], [95.75, 33.35], [95.5, 33.25], [95.25, 33.35], [95.0, 33.25], [94.75, 33.35], [94.5, 33.25], [93.97, 33.47], [93.75, 34.0], [93.85, 34.25], [93.75, 34.5]], [[99.75, 34.65], [99.82, 34.68], [99.93, 34.93], [99.63, 34.8], [99.68, 34.68], [99.75, 34.65]]]]}, "2024-10-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[93.75, 34.5], [93.97, 35.03], [94.5, 35.25], [94.75, 35.15], [94.82, 35.18], [94.97, 35.53], [95.5, 35.75], [95.75, 35.65], [96.0, 35.75], [96.25, 35.65], [96.5, 35.75], [96.75, 35.65], [96.82, 35.68], [96.97, 36.03], [97.5, 36.25], [97.75, 36.15], [98.0, 36.25], [98.5, 36.04], [99.0, 36.25], [99.25, 36.15], [99.5, 36.25], [100.03, 36.03], [100.25, 35.5], [100.07, 35.07], [100.32, 35.18], [100.47, 35.53], [101.0, 35.75], [101.25, 35.65], [101.32, 35.68], [101.47, 36.03], [102.0, 36.25], [102.53, 36.03], [102.75, 35.5], [102.65, 35.25], [102.75, 35.0], [102.65, 34.75], [102.75, 34.5], [102.65, 34.25], [102.75, 34.0], [102.53, 33.47], [102.18, 33.32], [102.13, 33.2], [102.53, 33.03], [102.75, 32.5], [102.53, 31.97], [102.0, 31.75], [101.75, 31.85], [101.5, 31.75], [100.97, 31.97], [100.82, 32.32], [100.75, 32.35], [100.68, 32.32], [100.53, 31.97], [100.0, 31.75], [99.47, 31.97], [99.32, 32.32], [99.25, 32.35], [99.0, 32.25], [98.47, 32.47], [98.3, 32.88], [98.0, 32.75], [97.75, 32.85], [97.5, 32.75], [96.97, 32.97], [96.8, 33.38], [96.5, 33.25], [96.25, 33.35], [96.0, 33.25], [95.75, 33.35], [95.5, 33.25], [95.25, 33.35], [95.0, 33.25], [94.75, 33.35], [94.5, 33.25], [93.97, 33.47], [93.75, 34.0], [93.85, 34.25], [93.75, 34.5]], [[99.75, 34.65], [99.82, 34.68], [99.93, 34.93], [99.63, 34.8], [99.68, 34.68], [99.75, 34.65]]]]}, "2024-10-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[99.47, 33.03], [100.0, 33.25], [100.53, 33.03], [100.75, 32.5], [100.53, 31.97], [100.0, 31.75], [99.47, 31.97], [99.25, 32.5], [99.47, 33.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.345957462507897}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.166743812895121}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-3.2192054748534815, -0.27281420158612946, -0.281819083473863, -0.9525199984326491, -0.15948079427079165]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-0.12320938110349289, 4.925500488281273, 6.2421496073405365, 5.705499267578148, -0.15948079427079165]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.851838559684916, 6.059095389617723, 6.483081136831063, 6.1039874845783135, 4.652222271833693]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.446698559749109, 8.89971533043473, 9.345957462507897, 9.007534643856616, 4.652222271833693]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5112956502796417, 1.6960331662364831, 1.8018875010662503, 1.6791604202466783, 1.2767153337398947]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8275185828773806, 2.8125950497353553, 2.876429783951632, 2.2250351192962743, 1.2767153337398947]}}