{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:18:36.676908", "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": "2022-Mar-08_to_2022-Mar-13_249.5_16.5"}, "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": 2022030000324}, "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": "March 08 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 13 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 188598.58063473887}, "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": ["Pacific Ocean"]}, "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": 16.5}, "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": 249.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "249.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 247.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 253.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 15.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 19.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-109.25, 15.5], [-109.47, 14.97], [-109.82, 14.82], [-109.97, 14.47], [-110.5, 14.25], [-111.03, 14.47], [-111.25, 15.0], [-111.15, 15.25], [-111.18, 15.32], [-111.53, 15.47], [-111.68, 15.82], [-112.03, 15.97], [-112.18, 16.32], [-112.53, 16.47], [-112.68, 16.82], [-113.03, 16.97], [-113.25, 17.5], [-113.04, 18.0], [-113.25, 18.5], [-113.03, 19.03], [-112.68, 19.18], [-112.53, 19.53], [-112.0, 19.75], [-111.75, 19.65], [-111.5, 19.75], [-111.25, 19.65], [-111.0, 19.75], [-110.75, 19.65], [-110.5, 19.75], [-109.97, 19.53], [-109.82, 19.18], [-109.75, 19.15], [-109.5, 19.25], [-109.25, 19.15], [-109.0, 19.25], [-108.75, 19.15], [-108.68, 19.18], [-108.53, 19.53], [-108.0, 19.75], [-107.75, 19.65], [-107.5, 19.75], [-106.97, 19.53], [-106.75, 19.0], [-106.85, 18.75], [-106.82, 18.68], [-106.47, 18.53], [-106.32, 18.18], [-105.97, 18.03], [-105.75, 17.5], [-105.97, 16.97], [-106.32, 16.82], [-106.47, 16.47], [-107.0, 16.25], [-107.25, 16.35], [-107.5, 16.25], [-107.75, 16.35], [-108.0, 16.25], [-108.25, 16.35], [-108.32, 16.32], [-108.47, 15.97], [-109.0, 15.75], [-109.25, 15.85], [-109.32, 15.82], [-109.35, 15.75], [-109.25, 15.5]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Central-America", "N.Pacific-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-03-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-111.53, 15.97], [-111.75, 16.5], [-111.53, 17.03], [-111.18, 17.18], [-111.03, 17.53], [-110.5, 17.75], [-109.97, 17.53], [-109.82, 17.18], [-109.47, 17.03], [-109.25, 16.5], [-109.35, 16.25], [-109.25, 16.0], [-109.35, 15.75], [-109.25, 15.5], [-109.47, 14.97], [-109.82, 14.82], [-109.97, 14.47], [-110.5, 14.25], [-111.03, 14.47], [-111.25, 15.0], [-111.15, 15.25], [-111.25, 15.5], [-111.15, 15.75], [-111.18, 15.82], [-111.53, 15.97]]]]}, "2022-03-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-113.25, 18.5], [-113.03, 19.03], [-112.68, 19.18], [-112.53, 19.53], [-112.0, 19.75], 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evolution of maximum t2m.", "value": [22.191855661724276, 20.347006037803283, 20.251000212920644, 20.215941509785637, 21.157377026967197, 21.89763060986121]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.3639632514432567, -1.810942233275148, -1.7693400831339146, -1.8067061545405465, -1.7844896876708352, -1.5837372691928202]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.4492706725154108, -2.080951900975606, -2.0623258405302636, -2.0740468339714084, -2.063376443640152, -1.7947420469724875]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.52278411359617, -1.8660573016235262, -1.81857086959736, -1.8585878936751046, -1.8710988866750367, -1.7100138957001674]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.592900197649426, -2.406470910907292, -2.106063813355814, -2.1414351457247967, -2.1338135102097597, -1.8929410249332983]}}