{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:11:04.851512", "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": "2020-Jan-03_to_2020-Jan-06_119.0_35.5"}, "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": 2020010001293}, "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": "January 03 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 06 2020"}, "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": 63932.76461562033}, "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": ["China"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": 35.5}, "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": 119.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "119.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 116.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 119.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 32.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 36.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[116.5, 34.25], [116.75, 34.146], [116.823, 34.177], [116.854, 34.25], [116.823, 34.323], [116.47, 34.47], [116.25, 35.0], [116.47, 35.53], [117.0, 35.75], [117.25, 35.646], [117.323, 35.677], [117.47, 36.03], [117.823, 36.177], [117.854, 36.25], [117.75, 36.5], [117.97, 37.03], [118.5, 37.25], [119.03, 37.03], [119.25, 36.5], [119.146, 36.25], [119.177, 36.177], [119.53, 36.03], [119.75, 35.5], [119.53, 34.97], [119.177, 34.823], [119.03, 34.47], [118.677, 34.323], [118.646, 34.25], [118.677, 34.177], [119.03, 34.03], [119.177, 33.677], [119.53, 33.53], [119.75, 33.0], [119.53, 32.47], [119.177, 32.323], [119.03, 31.97], [118.5, 31.75], [117.97, 31.97], [117.823, 32.323], [117.75, 32.354], [117.5, 32.25], [117.25, 32.354], [117.0, 32.25], [116.75, 32.354], [116.5, 32.25], [115.97, 32.47], [115.75, 33.0], [115.854, 33.25], [115.75, 33.5], [115.97, 34.03], [116.5, 34.25]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-01-03T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[115.85355339059328, 33.25], [115.75, 33.5], [115.96966991411009, 34.03033008588991], [116.5, 34.25], [116.75, 34.14644660940672], [117.0, 34.25], [117.25, 34.14644660940672], [117.5, 34.25], [118.03033008588991, 34.03033008588991], [118.17677669529664, 33.67677669529664], [118.53033008588991, 33.53033008588991], [118.75, 33.0], [118.53033008588991, 32.46966991411009], [118.0, 32.25], [117.75, 32.35355339059328], [117.5, 32.25], [117.25, 32.35355339059328], [117.0, 32.25], [116.75, 32.35355339059328], [116.5, 32.25], [115.96966991411009, 32.46966991411009], [115.75, 33.0], [115.85355339059328, 33.25]]]}, "2020-01-04T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[115.85355339059328, 33.25], [115.75, 33.5], [115.96966991411009, 34.03033008588991], [116.5, 34.25], [116.75, 34.14644660940672], [116.82322330470336, 34.17677669529664], [116.85355339059328, 34.25], [116.82322330470336, 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"anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4446092191130462, 1.8553514204899373, 1.9395134938048606, 1.862848447627117]}}