{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:05:49.483246", "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-Jun-23_to_2025-Jun-28_271.5_19.0"}, "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": 2025060000799}, "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": "June 23 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 28 2025"}, "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": 119779.49557319182}, "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": ["Belize", "Guatemala", "Mexico"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["America", "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": 19.0}, "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": 271.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "271.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 268.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 272.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 17.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 21.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-91.12, 19.7], [-91.18, 19.82], [-91.53, 19.97], [-91.68, 20.32], [-92.03, 20.47], [-92.25, 21.0], [-92.03, 21.53], [-91.5, 21.75], [-91.25, 21.65], [-91.0, 21.75], [-90.75, 21.65], [-90.5, 21.75], [-89.97, 21.53], [-89.82, 21.18], [-89.75, 21.15], [-89.5, 21.25], [-89.25, 21.15], [-89.0, 21.25], [-88.47, 21.03], [-88.32, 20.68], [-87.97, 20.53], [-87.82, 20.18], [-87.47, 20.03], [-87.25, 19.5], [-87.35, 19.25], [-87.25, 19.0], [-87.47, 18.47], [-87.82, 18.32], [-87.97, 17.97], [-88.32, 17.82], [-88.35, 17.75], [-88.25, 17.5], [-88.47, 16.97], [-88.82, 16.82], [-88.97, 16.47], [-89.5, 16.25], [-90.03, 16.47], [-90.18, 16.82], [-90.25, 16.85], [-90.5, 16.75], [-90.75, 16.85], [-91.0, 16.75], [-91.25, 16.85], [-91.5, 16.75], [-92.03, 16.97], [-92.25, 17.5], [-92.15, 17.75], [-92.25, 18.0], [-92.15, 18.25], [-92.25, 18.5], [-92.03, 19.03], [-91.68, 19.18], [-91.53, 19.53], [-91.12, 19.7]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Central-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-06-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-89.25, 19.0], [-89.02999999999997, 19.53], [-88.68, 19.68], [-88.52999999999997, 20.03], [-88.0, 20.25], [-87.47000000000003, 20.03], [-87.25, 19.5], [-87.47000000000003, 18.97], [-87.82, 18.82], [-87.85000000000002, 18.75], [-87.75, 18.5], [-87.97000000000003, 17.97], [-88.5, 17.75], [-89.02999999999997, 17.97], [-89.25, 18.5], [-89.14999999999998, 18.75], [-89.25, 19.0]]]]}, "2025-06-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-89.25, 19.0], [-89.02999999999997, 19.53], [-88.68, 19.68], [-88.52999999999997, 20.03], [-88.0, 20.25], [-87.47000000000003, 20.03], [-87.25, 19.5], [-87.47000000000003, 18.97], [-87.82, 18.82], [-87.85000000000002, 18.75], [-87.75, 18.5], [-87.97000000000003, 17.97], [-88.5, 17.75], [-89.02999999999997, 17.97], [-89.25, 18.5], [-89.14999999999998, 18.75], [-89.25, 19.0]]]]}, "2025-06-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-92.02999999999997, 19.03], [-91.68, 19.18], [-91.52999999999997, 19.53], [-91.0, 19.75], [-90.47000000000003, 19.53], [-90.25, 19.0], [-90.47000000000003, 18.47], [-90.82, 18.32], [-90.85000000000002, 18.25], [-90.75, 18.0], [-90.97000000000003, 17.47], [-91.5, 17.25], [-92.02999999999997, 17.47], [-92.25, 18.0], [-92.14999999999998, 18.25], [-92.25, 18.5], [-92.02999999999997, 19.03]]], [[[-89.02999999999997, 19.53], [-88.68, 19.68], [-88.52999999999997, 20.03], [-88.0, 20.25], [-87.47000000000003, 20.03], [-87.25, 19.5], [-87.47000000000003, 18.97], [-87.82, 18.82], [-87.85000000000002, 18.75], [-87.75, 18.5], [-87.97000000000003, 17.97], [-88.5, 17.75], [-89.02999999999997, 17.97], [-89.25, 18.5], [-89.14999999999998, 18.75], [-89.25, 19.0], [-89.02999999999997, 19.53]]]]}, "2025-06-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-92.25, 18.0], [-92.14999999999998, 18.25], [-92.25, 18.5], [-92.02999999999997, 19.03], 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19.0], [-87.47000000000003, 18.47], [-88.0, 18.25], [-88.25, 18.35], [-88.32, 18.32], [-88.35000000000002, 18.25], [-88.25, 18.0], [-88.35000000000002, 17.75], [-88.25, 17.5], [-88.47000000000003, 16.97], [-88.82, 16.82], [-88.97000000000003, 16.47], [-89.5, 16.25], [-90.02999999999997, 16.47], [-90.18, 16.82], [-90.25, 16.85], [-90.5, 16.75], [-90.75, 16.85], [-91.0, 16.75], [-91.25, 16.85], [-91.5, 16.75], [-92.02999999999997, 16.97], [-92.25, 17.5], [-92.14999999999998, 17.75], [-92.25, 18.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.254621836601586}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.398741662170359}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.195978630913658, 25.916827138264978, 26.47022230360244, 25.78911715251644, 25.313341503608513, 25.34197345309792]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.65686187744143, 25.728106435139978, 25.974481201171898, 24.39999669392904, 23.66835174560549, 23.868367767334007]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.6626281352758383, -1.9195627080174706, -1.7431683324238445, -2.1612275967560013, -2.627816112821657, -2.601955550039762]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.1849712208917254, -2.0915760947887065, -2.0310314660617905, -2.9358540188218853, -4.092082335038867, -4.254621836601586]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.531098923474497, -1.7726730540662878, -1.4144622152823072, -1.7012323085899825, -2.079284921275381, -2.073920409824994]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8564160440671382, -1.8636647691593313, -1.4885520386205249, -2.2569534344825977, -2.8020708541002564, -3.0232183268311075]}}