{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:15:40.735002", "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": "2021-Nov-07_to_2021-Nov-10_255.0_32.0"}, "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": 2021110001607}, "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": "November 07 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 10 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 89155.21548876277}, "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": 32.0}, "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": 255.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "255.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 254.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 258.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 30.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 33.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-104.75, 32.65], [-104.68, 32.68], [-104.65, 32.75], [-104.75, 33.0], [-104.53, 33.53], [-104.18, 33.68], [-104.03, 34.03], [-103.5, 34.25], [-103.25, 34.15], [-103.0, 34.25], [-102.75, 34.15], [-102.5, 34.25], [-102.25, 34.15], [-102.0, 34.25], [-101.75, 34.15], [-101.5, 34.25], [-100.97, 34.03], [-100.75, 33.5], [-100.97, 32.97], [-101.32, 32.82], [-101.47, 32.47], [-101.82, 32.32], [-101.97, 31.97], [-102.37, 31.8], [-102.25, 31.5], [-102.35, 31.25], [-102.25, 31.0], [-102.47, 30.47], [-102.82, 30.32], [-102.97, 29.97], [-103.32, 29.82], [-103.47, 29.47], [-104.0, 29.25], [-104.53, 29.47], [-104.68, 29.82], [-104.75, 29.85], [-105.0, 29.75], [-105.53, 29.97], [-105.75, 30.5], [-105.65, 30.75], [-105.68, 30.82], [-106.03, 30.97], [-106.25, 31.5], [-106.03, 32.03], [-105.68, 32.18], [-105.53, 32.53], [-105.0, 32.75], [-104.75, 32.65]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.North-America", "N.Central-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-11-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-105.75, 32.0], [-105.53, 32.53], [-105.0, 32.75], [-104.47, 32.53], [-104.25, 32.0], [-104.46000000000001, 31.5], [-104.25, 31.0], [-104.47, 30.47], [-105.0, 30.25], [-105.53, 30.47], [-105.75, 31.0], [-105.53999999999999, 31.5], [-105.75, 32.0]]]]}, "2021-11-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-106.03, 30.97], [-106.25, 31.5], [-106.03, 32.03], [-105.68, 32.18], [-105.53, 32.53], [-105.0, 32.75], [-104.75, 32.65], [-104.68, 32.68], [-104.65, 32.75], [-104.75, 33.0], [-104.53, 33.53], [-104.18, 33.68], [-104.03, 34.03], [-103.5, 34.25], [-103.25, 34.15], [-103.0, 34.25], [-102.75, 34.15], [-102.5, 34.25], [-102.25, 34.15], [-102.0, 34.25], [-101.75, 34.15], [-101.5, 34.25], [-100.97000000000003, 34.03], [-100.75, 33.5], [-100.97000000000003, 32.97], [-101.32, 32.82], [-101.47000000000003, 32.47], [-101.82, 32.32], [-101.97000000000003, 31.97], [-102.37, 31.8], [-102.25, 31.5], [-102.35000000000002, 31.25], [-102.25, 31.0], [-102.47000000000003, 30.47], [-102.82, 30.32], [-102.97000000000003, 29.97], [-103.32, 29.82], [-103.47000000000003, 29.47], [-104.0, 29.25], [-104.53, 29.47], [-104.68, 29.82], [-104.75, 29.85], [-105.0, 29.75], [-105.53, 29.97], [-105.75, 30.5], [-105.65, 30.75], [-105.68, 30.82], [-106.03, 30.97]]]]}, "2021-11-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-106.03, 30.97], [-106.25, 31.5], [-106.03, 32.03], [-105.68, 32.18], [-105.53, 32.53], [-105.0, 32.75], [-104.75, 32.65], [-104.68, 32.68], [-104.65, 32.75], [-104.75, 33.0], [-104.53, 33.53], [-104.18, 33.68], [-104.03, 34.03], [-103.5, 34.25], [-103.25, 34.15], [-103.0, 34.25], [-102.75, 34.15], [-102.5, 34.25], [-102.25, 34.15], [-102.0, 34.25], [-101.75, 34.15], [-101.5, 34.25], [-100.97000000000003, 34.03], [-100.75, 33.5], [-100.97000000000003, 32.97], [-101.32, 32.82], [-101.47000000000003, 32.47], [-101.82, 32.32], [-101.97000000000003, 31.97], [-102.37, 31.8], [-102.25, 31.5], [-102.35000000000002, 31.25], [-102.25, 31.0], [-102.47000000000003, 30.47], [-102.82, 30.32], [-102.97000000000003, 29.97], [-103.32, 29.82], [-103.47000000000003, 29.47], [-104.0, 29.25], [-104.53, 29.47], [-104.68, 29.82], [-104.75, 29.85], [-105.0, 29.75], [-105.53, 29.97], [-105.75, 30.5], [-105.65, 30.75], [-105.68, 30.82], [-106.03, 30.97]]]]}, "2021-11-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-106.03, 30.97], [-106.25, 31.5], [-106.03, 32.03], [-105.68, 32.18], [-105.53, 32.53], [-105.0, 32.75], [-104.75, 32.65], [-104.68, 32.68], [-104.65, 32.75], [-104.75, 33.0], [-104.53, 33.53], [-104.18, 33.68], [-104.03, 34.03], [-103.5, 34.25], [-103.25, 34.15], [-103.0, 34.25], [-102.75, 34.15], [-102.5, 34.25], [-102.25, 34.15], [-102.0, 34.25], [-101.75, 34.15], [-101.5, 34.25], [-100.97000000000003, 34.03], [-100.75, 33.5], [-100.97000000000003, 32.97], [-101.32, 32.82], [-101.47000000000003, 32.47], [-101.82, 32.32], [-101.97000000000003, 31.97], [-102.37, 31.8], [-102.25, 31.5], [-102.35000000000002, 31.25], [-102.25, 31.0], [-102.47000000000003, 30.47], [-102.82, 30.32], [-102.97000000000003, 29.97], [-103.32, 29.82], [-103.47000000000003, 29.47], [-104.0, 29.25], [-104.53, 29.47], [-104.68, 29.82], [-104.75, 29.85], [-105.0, 29.75], [-105.53, 29.97], [-105.75, 30.5], [-105.65, 30.75], [-105.68, 30.82], [-106.03, 30.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.486635580610709}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.8527908360849015}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [18.22326719645457, 18.623662807474886, 19.342626348534225, 18.36140181804035]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.74996346022607, 21.40533790676659, 22.405242645258397, 21.408183689981]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.86604575560861, 5.385813629580771, 6.4001424970402105, 5.830460209897039]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.026506235639431, 6.577953367502971, 7.486635580610709, 6.884981944225842]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.267052027755249, 1.3534761104513442, 1.6122530634346812, 1.4146867795229925]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3298525478582668, 1.588162868109191, 1.936397923456703, 1.6278280521134048]}}