{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:58:35.785963", "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-Apr-23_to_2024-Apr-25_253.5_30.0"}, "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": 2024040001852}, "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": "April 23 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 25 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 71680.2145440139}, "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", "United States"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["America", "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": 30.0}, "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": 253.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "253.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 252.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 255.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 29.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 32.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-108.03, 30.53], [-107.68, 30.68], [-107.65, 30.75], [-107.75, 31.0], [-107.65, 31.25], [-107.75, 31.5], [-107.53, 32.03], [-107.0, 32.25], [-106.75, 32.15], [-106.68, 32.18], [-106.53, 32.53], [-106.18, 32.68], [-106.03, 33.03], [-105.5, 33.25], [-105.25, 33.15], [-105.0, 33.25], [-104.47, 33.03], [-104.25, 32.5], [-104.35, 32.25], [-104.25, 32.0], [-104.35, 31.75], [-104.25, 31.5], [-104.47, 30.97], [-104.82, 30.82], [-104.85, 30.75], [-104.75, 30.5], [-104.85, 30.25], [-104.75, 30.0], [-104.97, 29.47], [-105.5, 29.25], [-105.75, 29.35], [-105.82, 29.32], [-105.85, 29.25], [-105.75, 29.0], [-105.97, 28.47], [-106.5, 28.25], [-106.75, 28.35], [-107.0, 28.25], [-107.53, 28.47], [-107.75, 29.0], [-107.65, 29.25], [-107.68, 29.32], [-108.03, 29.47], [-108.25, 30.0], [-108.03, 30.53]]]]}}, "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": {"2024-04-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-108.03, 29.47], [-108.25, 30.0], [-108.03, 30.53], [-107.68, 30.68], [-107.65, 30.75], [-107.75, 31.0], [-107.65, 31.25], [-107.75, 31.5], [-107.53, 32.03], [-107.0, 32.25], [-106.75, 32.15], [-106.68, 32.18], [-106.53, 32.53], [-106.18, 32.68], [-106.03, 33.03], [-105.5, 33.25], [-105.25, 33.15], [-105.0, 33.25], [-104.47, 33.03], [-104.25, 32.5], [-104.35, 32.25], [-104.25, 32.0], [-104.35, 31.75], [-104.25, 31.5], [-104.47, 30.97], [-104.82, 30.82], [-104.85, 30.75], [-104.75, 30.5], [-104.85, 30.25], [-104.75, 30.0], [-104.97, 29.47], [-105.5, 29.25], [-105.75, 29.35], [-105.82, 29.32], [-105.85, 29.25], [-105.75, 29.0], [-105.97, 28.47], [-106.5, 28.25], [-106.75, 28.35], [-107.0, 28.25], [-107.53, 28.47], [-107.75, 29.0], [-107.65, 29.25], [-107.68, 29.32], [-108.03, 29.47]]]]}, "2024-04-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-108.03, 29.47], [-108.25, 30.0], [-108.03, 30.53], [-107.68, 30.68], [-107.65, 30.75], [-107.75, 31.0], [-107.65, 31.25], [-107.75, 31.5], [-107.53, 32.03], [-107.0, 32.25], [-106.75, 32.15], [-106.68, 32.18], [-106.53, 32.53], [-106.18, 32.68], [-106.03, 33.03], [-105.5, 33.25], [-105.25, 33.15], [-105.0, 33.25], [-104.47, 33.03], [-104.25, 32.5], [-104.35, 32.25], [-104.25, 32.0], [-104.35, 31.75], [-104.25, 31.5], [-104.47, 30.97], [-104.82, 30.82], [-104.85, 30.75], [-104.75, 30.5], [-104.85, 30.25], [-104.75, 30.0], [-104.97, 29.47], [-105.5, 29.25], [-105.75, 29.35], [-105.82, 29.32], [-105.85, 29.25], [-105.75, 29.0], [-105.97, 28.47], [-106.5, 28.25], [-106.75, 28.35], [-107.0, 28.25], [-107.53, 28.47], [-107.75, 29.0], [-107.65, 29.25], [-107.68, 29.32], [-108.03, 29.47]]]]}, "2024-04-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-108.03, 29.47], [-108.25, 30.0], [-108.03, 30.53], [-107.68, 30.68], [-107.65, 30.75], [-107.75, 31.0], [-107.65, 31.25], [-107.75, 31.5], [-107.53, 32.03], [-107.0, 32.25], [-106.75, 32.15], [-106.68, 32.18], [-106.53, 32.53], [-106.18, 32.68], [-106.03, 33.03], [-105.5, 33.25], [-105.25, 33.15], [-105.0, 33.25], [-104.47, 33.03], [-104.25, 32.5], [-104.35, 32.25], [-104.25, 32.0], [-104.35, 31.75], [-104.25, 31.5], [-104.47, 30.97], [-104.82, 30.82], [-104.85, 30.75], [-104.75, 30.5], [-104.85, 30.25], [-104.75, 30.0], [-104.97, 29.47], [-105.5, 29.25], [-105.75, 29.35], [-105.82, 29.32], [-105.85, 29.25], [-105.75, 29.0], [-105.97, 28.47], [-106.5, 28.25], [-106.75, 28.35], [-107.0, 28.25], [-107.53, 28.47], [-107.75, 29.0], [-107.65, 29.25], [-107.68, 29.32], [-108.03, 29.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.076438413809171}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.417976830817892}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.779810313541986, 24.266241860646346, 24.46489521815215]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.39709802843845, 26.745621580623094, 27.446622889124114]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.021932818394528, 4.519101655180548, 4.7128960188786015]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.258152955469939, 6.076438413809171, 5.273369474673757]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.313084068531024, 1.4144477608076496, 1.3843317941614868]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5816489445245965, 1.7514296660139226, 1.5700370080548232]}}