{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:19:32.756849", "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-Apr-04_to_2022-Apr-07_117.0_-65.0"}, "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": 2022040001349}, "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 04 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 07 2022"}, "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": 60188.527192433365}, "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": ["Antarctica"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Antarctica"]}, "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": ["Southern 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": -65.0}, "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": 117.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "117.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 114.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 120.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -67.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -64.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[114.8, -65.87], [114.97, -65.47], [115.38, -65.3], [115.32, -65.18], [115.25, -65.15], [115.0, -65.25], [114.47, -65.03], [114.32, -64.68], [114.25, -64.65], [114.0, -64.75], [113.47, -64.53], [113.25, -64.0], [113.47, -63.47], [114.0, -63.25], [114.25, -63.35], [114.5, -63.25], [114.75, -63.35], [115.0, -63.25], [115.25, -63.35], [115.5, -63.25], [115.75, -63.35], [116.0, -63.25], [116.25, -63.35], [116.5, -63.25], [116.75, -63.35], [117.0, -63.25], [117.25, -63.35], [117.5, -63.25], [118.03, -63.47], [118.25, -64.0], [118.15, -64.25], [118.18, -64.32], [118.53, -64.47], [118.75, -65.0], [118.65, -65.25], [118.68, -65.32], [118.75, -65.35], [119.0, -65.25], [119.25, -65.35], [119.5, -65.25], [120.03, -65.47], [120.18, -65.82], [120.53, -65.97], [120.75, -66.5], [120.53, -67.03], [120.0, -67.25], [119.75, -67.15], [119.5, -67.25], [119.25, -67.15], [119.0, -67.25], [118.75, -67.15], [118.5, -67.25], [118.25, -67.15], [118.0, -67.25], [117.75, -67.15], [117.5, -67.25], [117.25, -67.15], [117.0, -67.25], [116.75, -67.15], [116.68, -67.18], [116.53, -67.53], [116.0, -67.75], [115.75, -67.65], [115.5, -67.75], [115.25, -67.65], [115.0, -67.75], [114.75, -67.65], [114.5, -67.75], [113.97, -67.53], [113.75, -67.0], [113.85, -66.75], [113.75, -66.5], [113.97, -65.97], [114.5, -65.75], [114.8, -65.87]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Antarctica", "Southern-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-04-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.0, -64.75], [113.47, -64.53], [113.25, -64.0], [113.47, -63.47], [114.0, -63.25], [114.25, -63.35], [114.5, -63.25], [114.75, -63.35], [115.0, -63.25], [115.25, -63.35], [115.5, -63.25], [115.75, -63.35], [116.0, -63.25], [116.25, -63.35], [116.5, -63.25], [116.75, -63.35], [117.0, -63.25], [117.25, -63.35], [117.5, -63.25], [118.03, -63.47], [118.25, -64.0], [118.15, -64.25], [118.18, -64.32], [118.53, -64.47], [118.75, -65.0], 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of mean t2m anomalies.", "value": [4.384571216730528, 5.9491331569223735, 5.737469787291552, 5.59253971219131]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.070711141845436, 9.259055996363202, 9.270496055677995, 7.447186310306392]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4066482024877256, 1.565772555734239, 1.4740648373730116, 1.3315515332977605]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5164334702685773, 1.9018843240653807, 1.8689767373402952, 1.456370284123348]}}