{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:04.817450", "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": "2015-Oct-19_to_2015-Oct-24_266.0_40.0"}, "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": 2015100001912}, "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": "October 19 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 24 2015"}, "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": "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": 296164.93297684717}, "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": ["United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.North-America", "E.North-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North 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": 40.0}, "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": 266.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "266.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 260.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 271.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 36.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 41.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-10-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.15, 39.25], [-100.25, 39.5], [-100.15, 39.75], [-100.25, 40.0], [-100.03, 40.53], [-99.68, 40.68], [-99.53, 41.03], [-99.18, 41.18], [-99.15, 41.25], [-99.25, 41.5], [-99.03, 42.03], [-98.5, 42.25], [-97.97, 42.03], [-97.8, 41.62], [-97.68, 41.68], [-97.53, 42.03], [-97.0, 42.25], [-96.75, 42.15], [-96.5, 42.25], [-95.97, 42.03], [-95.82, 41.68], [-95.75, 41.65], [-95.68, 41.68], [-95.53, 42.03], [-95.0, 42.25], [-94.47, 42.03], [-94.32, 41.68], [-93.97, 41.53], [-93.82, 41.18], [-93.47, 41.03], [-93.25, 40.5], [-93.35, 40.25], [-93.25, 40.0], [-93.47, 39.47], [-94.0, 39.25], [-94.25, 39.35], [-94.5, 39.25], [-94.75, 39.35], [-94.82, 39.32], [-94.97, 38.97], [-95.32, 38.82], [-95.47, 38.47], [-96.0, 38.25], [-96.25, 38.35], [-96.32, 38.32], [-96.47, 37.97], [-97.0, 37.75], [-97.25, 37.85], [-97.5, 37.75], [-97.75, 37.85], [-97.82, 37.82], [-97.97, 37.47], [-98.5, 37.25], [-98.75, 37.35], [-99.0, 37.25], [-99.53, 37.47], [-99.68, 37.82], [-100.03, 37.97], [-100.25, 38.5], [-100.15, 38.75], [-100.25, 39.0], [-100.15, 39.25]]]]}, "2015-10-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.15, 39.25], [-100.25, 39.5], [-100.15, 39.75], [-100.25, 40.0], [-100.03, 40.53], [-99.68, 40.68], [-99.53, 41.03], [-99.18, 41.18], [-99.15, 41.25], [-99.25, 41.5], [-99.03, 42.03], [-98.5, 42.25], [-97.97, 42.03], [-97.8, 41.62], [-97.68, 41.68], [-97.53, 42.03], [-97.0, 42.25], [-96.75, 42.15], [-96.5, 42.25], [-95.97, 42.03], [-95.82, 41.68], [-95.75, 41.65], [-95.68, 41.68], [-95.53, 42.03], [-95.0, 42.25], [-94.47, 42.03], [-94.32, 41.68], [-93.97, 41.53], [-93.82, 41.18], [-93.47, 41.03], [-93.32, 40.68], [-93.25, 40.65], [-93.0, 40.75], [-92.75, 40.65], [-92.68, 40.68], [-92.53, 41.03], [-92.0, 41.25], [-91.75, 41.15], [-91.5, 41.25], [-91.25, 41.15], [-91.0, 41.25], [-90.75, 41.15], [-90.5, 41.25], [-90.25, 41.15], [-90.0, 41.25], [-89.75, 41.15], [-89.5, 41.25], [-89.25, 41.15], [-89.0, 41.25], [-88.47, 41.03], [-88.25, 40.5], [-88.47, 39.97], [-89.0, 39.75], [-89.25, 39.85], [-89.32, 39.82], [-89.47, 39.47], [-90.0, 39.25], [-90.25, 39.35], [-90.32, 39.32], [-90.47, 38.97], [-91.0, 38.75], [-91.25, 38.85], [-91.32, 38.82], [-91.47, 38.47], [-91.82, 38.32], [-91.97, 37.97], [-92.5, 37.75], [-92.75, 37.85], [-93.0, 37.75], [-93.25, 37.85], [-93.32, 37.82], [-93.47, 37.47], [-94.0, 37.25], [-94.53, 37.47], [-94.68, 37.82], [-94.75, 37.85], [-94.82, 37.82], [-94.97, 37.47], [-95.32, 37.32], [-95.35, 37.25], [-95.25, 37.0], [-95.47, 36.47], [-95.82, 36.32], [-95.97, 35.97], [-96.5, 35.75], [-96.75, 35.85], [-97.0, 35.75], [-97.53, 35.97], [-97.68, 36.32], [-98.03, 36.47], [-98.25, 37.0], [-98.15, 37.25], [-98.18, 37.32], [-98.25, 37.35], [-98.5, 37.25], [-98.75, 37.35], [-99.0, 37.25], [-99.53, 37.47], [-99.68, 37.82], [-100.03, 37.97], [-100.25, 38.5], [-100.15, 38.75], [-100.25, 39.0], [-100.15, 39.25]]]]}, "2015-10-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.15, 39.25], [-100.25, 39.5], [-100.15, 39.75], [-100.25, 40.0], [-100.03, 40.53], [-99.68, 40.68], [-99.53, 41.03], [-99.18, 41.18], [-99.15, 41.25], [-99.25, 41.5], [-99.03, 42.03], [-98.5, 42.25], [-97.97, 42.03], [-97.8, 41.62], [-97.68, 41.68], [-97.53, 42.03], [-97.0, 42.25], [-96.75, 42.15], [-96.5, 42.25], [-95.97, 42.03], [-95.82, 41.68], [-95.75, 41.65], [-95.68, 41.68], [-95.53, 42.03], [-95.0, 42.25], [-94.47, 42.03], [-94.32, 41.68], [-93.97, 41.53], [-93.82, 41.18], [-93.47, 41.03], [-93.32, 40.68], [-93.25, 40.65], [-93.0, 40.75], [-92.75, 40.65], [-92.68, 40.68], [-92.53, 41.03], [-92.0, 41.25], [-91.75, 41.15], [-91.5, 41.25], [-91.25, 41.15], [-91.0, 41.25], [-90.75, 41.15], [-90.5, 41.25], [-90.25, 41.15], [-90.0, 41.25], [-89.75, 41.15], [-89.5, 41.25], [-89.25, 41.15], [-89.0, 41.25], [-88.47, 41.03], [-88.25, 40.5], [-88.47, 39.97], [-88.82, 39.82], [-88.85, 39.75], [-88.75, 39.5], [-88.97, 38.97], [-89.5, 38.75], [-89.75, 38.85], [-90.0, 38.75], [-90.25, 38.85], [-90.5, 38.75], [-90.75, 38.85], [-90.82, 38.82], [-90.85, 38.75], [-90.75, 38.5], [-90.97, 37.97], [-91.5, 37.75], [-91.75, 37.85], [-92.0, 37.75], [-92.25, 37.85], [-92.5, 37.75], [-92.75, 37.85], [-93.0, 37.75], [-93.25, 37.85], [-93.32, 37.82], [-93.47, 37.47], [-94.0, 37.25], [-94.53, 37.47], [-94.68, 37.82], [-94.75, 37.85], [-94.82, 37.82], [-94.97, 37.47], [-95.32, 37.32], [-95.35, 37.25], [-95.25, 37.0], [-95.47, 36.47], [-95.82, 36.32], [-95.97, 35.97], [-96.5, 35.75], [-96.75, 35.85], [-97.0, 35.75], [-97.53, 35.97], [-97.68, 36.32], [-98.03, 36.47], [-98.25, 37.0], [-98.15, 37.25], [-98.18, 37.32], [-98.25, 37.35], [-98.5, 37.25], [-98.75, 37.35], [-99.0, 37.25], [-99.53, 37.47], [-99.68, 37.82], [-100.03, 37.97], [-100.25, 38.5], [-100.15, 38.75], [-100.25, 39.0], [-100.15, 39.25]]]]}, "2015-10-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-98.75, 38.0], [-98.53, 38.53], [-98.0, 38.75], [-97.75, 38.65], [-97.5, 38.75], [-97.25, 38.65], [-97.18, 38.68], [-97.03, 39.03], [-96.68, 39.18], [-96.53, 39.53], [-96.18, 39.68], [-96.03, 40.03], [-95.68, 40.18], [-95.53, 40.53], [-95.0, 40.75], [-94.75, 40.65], [-94.5, 40.75], [-94.25, 40.65], [-94.0, 40.75], [-93.75, 40.65], [-93.5, 40.75], [-93.25, 40.65], [-93.0, 40.75], [-92.75, 40.65], [-92.68, 40.68], [-92.53, 41.03], [-92.0, 41.25], [-91.75, 41.15], [-91.5, 41.25], [-91.25, 41.15], [-91.0, 41.25], [-90.75, 41.15], [-90.5, 41.25], [-90.25, 41.15], [-90.0, 41.25], [-89.75, 41.15], [-89.5, 41.25], [-89.25, 41.15], [-89.0, 41.25], [-88.47, 41.03], [-88.25, 40.5], [-88.47, 39.97], [-88.82, 39.82], [-88.85, 39.75], [-88.75, 39.5], [-88.97, 38.97], [-89.5, 38.75], [-89.75, 38.85], [-90.0, 38.75], [-90.25, 38.85], [-90.5, 38.75], [-90.75, 38.85], [-90.82, 38.82], [-90.85, 38.75], [-90.75, 38.5], [-90.97, 37.97], [-91.5, 37.75], [-91.75, 37.85], [-92.0, 37.75], [-92.25, 37.85], [-92.5, 37.75], [-92.75, 37.85], [-93.0, 37.75], [-93.25, 37.85], [-93.32, 37.82], [-93.47, 37.47], [-94.0, 37.25], [-94.53, 37.47], [-94.68, 37.82], [-94.75, 37.85], [-94.82, 37.82], [-94.97, 37.47], [-95.32, 37.32], [-95.35, 37.25], [-95.25, 37.0], [-95.47, 36.47], [-95.82, 36.32], [-95.97, 35.97], [-96.5, 35.75], [-96.75, 35.85], [-97.0, 35.75], [-97.53, 35.97], [-97.68, 36.32], [-98.03, 36.47], [-98.25, 37.0], [-98.15, 37.25], [-98.18, 37.32], [-98.53, 37.47], [-98.75, 38.0]]]]}, "2015-10-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-98.75, 38.0], [-98.53, 38.53], [-98.0, 38.75], [-97.75, 38.65], [-97.5, 38.75], [-97.25, 38.65], [-97.18, 38.68], [-97.03, 39.03], [-96.68, 39.18], [-96.53, 39.53], [-96.18, 39.68], [-96.03, 40.03], [-95.68, 40.18], [-95.53, 40.53], [-95.0, 40.75], [-94.75, 40.65], [-94.5, 40.75], [-94.25, 40.65], [-94.0, 40.75], [-93.75, 40.65], [-93.5, 40.75], [-93.25, 40.65], [-93.0, 40.75], [-92.75, 40.65], [-92.5, 40.75], [-91.97, 40.53], [-91.82, 40.18], [-91.47, 40.03], [-91.32, 39.68], [-91.2, 39.62], [-91.03, 40.03], [-90.68, 40.18], [-90.53, 40.53], [-90.0, 40.75], [-89.75, 40.65], [-89.5, 40.75], [-88.97, 40.53], [-88.75, 40.0], [-88.85, 39.75], [-88.75, 39.5], [-88.97, 38.97], [-89.5, 38.75], [-89.75, 38.85], [-90.0, 38.75], [-90.25, 38.85], [-90.5, 38.75], [-90.8, 38.88], [-90.85, 38.75], [-90.75, 38.5], [-90.97, 37.97], [-91.5, 37.75], [-91.75, 37.85], [-92.0, 37.75], [-92.25, 37.85], [-92.5, 37.75], [-93.03, 37.97], [-93.18, 38.32], [-93.5, 38.46], [-93.82, 38.32], [-93.97, 37.97], [-94.5, 37.75], [-94.75, 37.85], [-95.0, 37.75], [-95.25, 37.85], [-95.32, 37.82], [-95.47, 37.47], [-96.0, 37.25], [-96.25, 37.35], [-96.32, 37.32], [-96.47, 36.97], [-97.0, 36.75], [-97.25, 36.85], [-97.5, 36.75], [-98.03, 36.97], [-98.18, 37.32], [-98.53, 37.47], [-98.75, 38.0]]]]}, "2015-10-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-89.5, 40.25], [-88.97, 40.03], [-88.75, 39.5], [-88.97, 38.97], [-89.5, 38.75], [-90.03, 38.97], [-90.25, 39.5], [-90.03, 40.03], [-89.5, 40.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 10.503464493257297}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.770936287031191}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.046784043093055, 20.875612638561222, 20.496876386555243, 19.798589203708218, 19.325258571332654, 18.98464553255792]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.93811604440822, 23.11026953230754, 22.566447318347116, 21.050699659101383, 19.98799466709346, 18.98464553255792]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.759939060870881, 8.221152238222558, 8.032576211304379, 7.114767851832293, 6.877547832138795, 7.003478546480721]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [10.13329839145382, 10.503464493257297, 9.981069423559575, 8.719152199707992, 7.622495202387881, 7.003478546480721]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8451547000135196, 1.8729186375045361, 1.7945325190330375, 1.574739007146808, 1.5043751065190818, 1.5574381631088632]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.557966024454534, 2.55839010971533, 2.175194189397507, 1.9473147000347446, 1.617054765544833, 1.5574381631088632]}}