{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:05:30.821811", "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": "2025-May-21_to_2025-May-25_252.0_27.5"}, "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": 2025050002235}, "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": "May 21 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 25 2025"}, "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": 51400.6084564761}, "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": ["Mexico"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["America"]}, "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": 27.5}, "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": 252.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "252.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 251.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 254.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 27.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 30.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-108.0, 26.75], [-108.53, 26.97], [-108.75, 27.5], [-108.54, 28.0], [-108.75, 28.5], [-108.65, 28.75], [-108.75, 29.0], [-108.54, 29.5], [-108.68, 29.82], [-109.03, 29.97], [-109.25, 30.5], [-109.03, 31.03], [-108.5, 31.25], [-107.97, 31.03], [-107.82, 30.68], [-107.75, 30.65], [-107.5, 30.75], [-107.25, 30.65], [-107.0, 30.75], [-106.47, 30.53], [-106.32, 30.18], [-105.97, 30.03], [-105.82, 29.68], [-105.47, 29.53], [-105.25, 29.0], [-105.35, 28.75], [-105.25, 28.5], [-105.47, 27.97], [-105.82, 27.82], [-105.97, 27.47], [-106.5, 27.25], [-106.8, 27.38], [-106.97, 26.97], [-107.5, 26.75], [-107.75, 26.85], [-108.0, 26.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Central-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-05-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-108.75, 29.0], [-108.53, 29.53], [-108.0, 29.75], [-107.75, 29.65], [-107.5, 29.75], [-106.97, 29.53], [-106.75, 29.0], [-106.85, 28.75], [-106.75, 28.5], [-106.85, 28.25], [-106.75, 28.0], [-106.97, 27.47], [-107.5, 27.25], [-108.03, 27.47], [-108.18, 27.82], [-108.53, 27.97], [-108.75, 28.5], [-108.65, 28.75], [-108.75, 29.0]]]]}, "2025-05-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-109.03, 29.97], [-109.25, 30.5], [-109.03, 31.03], [-108.5, 31.25], [-107.97, 31.03], [-107.82, 30.68], [-107.75, 30.65], [-107.5, 30.75], [-107.25, 30.65], [-107.0, 30.75], [-106.47, 30.53], [-106.32, 30.18], [-105.97, 30.03], [-105.82, 29.68], [-105.47, 29.53], [-105.25, 29.0], [-105.35, 28.75], [-105.25, 28.5], [-105.47, 27.97], [-105.82, 27.82], [-105.97, 27.47], [-106.5, 27.25], [-106.80000000000001, 27.38], [-106.97, 26.97], [-107.5, 26.75], [-107.75, 26.85], [-108.0, 26.75], [-108.53, 26.97], [-108.75, 27.5], [-108.53999999999999, 28.0], [-108.75, 28.5], [-108.65, 28.75], [-108.75, 29.0], [-108.53999999999999, 29.5], [-108.68, 29.82], [-109.03, 29.97]]]]}, "2025-05-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-109.03, 29.97], [-109.25, 30.5], [-109.03, 31.03], [-108.5, 31.25], [-107.97, 31.03], [-107.82, 30.68], [-107.75, 30.65], [-107.5, 30.75], [-107.25, 30.65], [-107.0, 30.75], [-106.47, 30.53], [-106.32, 30.18], [-105.97, 30.03], [-105.82, 29.68], [-105.47, 29.53], [-105.25, 29.0], [-105.35, 28.75], [-105.25, 28.5], [-105.47, 27.97], [-105.82, 27.82], [-105.97, 27.47], [-106.5, 27.25], [-106.80000000000001, 27.38], [-106.97, 26.97], [-107.5, 26.75], [-107.75, 26.85], [-108.0, 26.75], [-108.53, 26.97], [-108.75, 27.5], [-108.53999999999999, 28.0], [-108.75, 28.5], [-108.65, 28.75], [-108.75, 29.0], [-108.53999999999999, 29.5], [-108.68, 29.82], [-109.03, 29.97]]]]}, "2025-05-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-109.03, 29.97], [-109.25, 30.5], [-109.03, 31.03], [-108.5, 31.25], [-107.97, 31.03], [-107.82, 30.68], [-107.75, 30.65], [-107.5, 30.75], [-107.25, 30.65], [-107.0, 30.75], [-106.47, 30.53], [-106.32, 30.18], [-105.97, 30.03], [-105.82, 29.68], [-105.47, 29.53], [-105.25, 29.0], [-105.35, 28.75], [-105.25, 28.5], [-105.47, 27.97], [-105.82, 27.82], [-105.97, 27.47], [-106.5, 27.25], [-106.80000000000001, 27.38], [-106.97, 26.97], [-107.5, 26.75], [-107.75, 26.85], [-108.0, 26.75], [-108.53, 26.97], [-108.75, 27.5], [-108.53, 28.03], [-108.0, 28.25], [-107.75, 28.15], [-107.62, 28.2], [-107.75, 28.5], [-107.65, 28.75], [-107.75, 29.0], [-107.65, 29.25], [-107.68, 29.32], [-107.75, 29.35], [-108.0, 29.25], [-108.53, 29.47], [-108.68, 29.82], [-109.03, 29.97]]]]}, "2025-05-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-108.53, 28.03], [-108.0, 28.25], [-107.47, 28.03], [-107.25, 27.5], [-107.47, 26.97], [-108.0, 26.75], [-108.53, 26.97], [-108.75, 27.5], [-108.53, 28.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.7978272841599505}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.609012600204067}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.518445078531897, 23.564814370138663, 24.286727557266033, 24.88503218151277, 21.19088261922201]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.465271250406943, 29.539843495686853, 30.13830718994143, 30.568062082926474, 21.19088261922201]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.1696468048931252, 3.3984824636983837, 4.035077259907789, 3.550417250676913, 2.5310205293761783]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.737877936400878, 4.0621364513889375, 4.7978272841599505, 4.758586399974263, 2.5310205293761783]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4200276700820287, 1.4650934285954869, 1.7332656753670868, 1.4847211239334759, 1.258741024388613]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6666853098917336, 1.7337936340044717, 1.8950655574175557, 1.86732885422373, 1.258741024388613]}}