{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:14:49.055853", "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-Jun-26_to_2020-Jul-01_348.0_19.5"}, "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": 2020060003113}, "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 26 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 01 2020"}, "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": 153397.79343099002}, "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": ["Mauritania"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "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": 19.5}, "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": 348.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "348.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 345.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 352.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 18.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 23.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[-15.75, 20.0], [-15.53, 20.53], [-15.0, 20.75], [-14.75, 20.646], [-14.5, 20.75], [-14.25, 20.646], [-14.0, 20.75], [-13.75, 20.646], [-13.5, 20.75], [-13.25, 20.646], [-13.0, 20.75], [-12.75, 20.646], [-12.677, 20.677], [-12.53, 21.03], [-12.0, 21.25], [-11.75, 21.146], [-11.5, 21.25], [-11.25, 21.146], [-11.177, 21.177], [-11.03, 21.53], [-10.5, 21.75], [-10.25, 21.646], [-10.0, 21.75], [-9.751, 21.646], [-9.75, 21.646], [-9.677, 21.677], [-9.646, 21.75], [-9.646, 21.751], [-9.75, 22.0], [-9.53, 22.53], [-9.177, 22.677], [-9.146, 22.75], [-9.25, 23.0], [-9.146, 23.25], [-9.25, 23.5], [-9.03, 24.03], [-8.5, 24.25], [-8.25, 24.146], [-8.0, 24.25], [-7.47, 24.03], [-7.323, 23.677], [-6.97, 23.53], [-6.75, 23.0], [-6.97, 22.47], [-7.323, 22.323], [-7.457, 22.0], [-7.25, 21.5], [-7.47, 20.97], [-7.823, 20.823], [-7.844, 20.774], [-7.854, 20.75], [-7.75, 20.5], [-7.97, 19.97], [-8.323, 19.823], [-8.344, 19.774], [-8.354, 19.75], [-8.25, 19.5], [-8.47, 18.97], [-8.823, 18.823], [-8.97, 18.47], [-9.5, 18.25], [-9.75, 18.354], [-10.0, 18.25], [-10.25, 18.354], [-10.323, 18.323], [-10.47, 17.97], [-11.0, 17.75], [-11.53, 17.97], [-11.677, 18.323], [-12.03, 18.47], [-12.177, 18.823], [-12.25, 18.854], [-12.5, 18.75], [-12.75, 18.854], [-13.0, 18.75], [-13.53, 18.97], [-13.677, 19.323], [-13.75, 19.354], [-14.0, 19.25], [-14.25, 19.354], [-14.5, 19.25], [-14.75, 19.354], [-15.0, 19.25], [-15.53, 19.47], [-15.75, 20.0]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-06-26T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-14.75, 19.353553390593277], [-15.0, 19.25], [-15.530330085889887, 19.46966991411009], [-15.75, 20.0], [-15.530330085889887, 20.53033008588991], [-15.0, 20.75], [-14.75, 20.646446609406723], [-14.5, 20.75], [-14.25, 20.646446609406723], [-14.0, 20.75], [-13.469669914110113, 20.53033008588991], [-13.25, 20.0], [-13.469669914110113, 19.46966991411009], [-14.0, 19.25], [-14.25, 19.353553390593277], [-14.5, 19.25], [-14.75, 19.353553390593277]]]}, "2020-06-27T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-14.75, 19.353553390593277], [-15.0, 19.25], [-15.530330085889887, 19.46966991411009], [-15.75, 20.0], [-15.530330085889887, 20.53033008588991], [-15.0, 20.75], [-14.75, 20.646446609406723], [-14.5, 20.75], [-14.25, 20.646446609406723], [-14.0, 20.75], [-13.75, 20.646446609406723], [-13.5, 20.75], [-13.25, 20.646446609406723], [-13.0, 20.75], [-12.75, 20.646446609406723], [-12.67677669529661, 20.67677669529664], [-12.530330085889887, 21.03033008588991], [-12.0, 21.25], [-11.75, 21.146446609406723], [-11.5, 21.25], [-11.25, 21.146446609406723], [-11.17677669529661, 21.17677669529664], [-11.030330085889887, 21.53033008588991], [-10.5, 21.75], [-10.25, 21.646446609406723], [-10.0, 21.75], [-9.75, 21.646446609406723], [-9.67677669529661, 21.67677669529664], [-9.530330085889887, 22.03033008588991], [-9.0, 22.25], [-8.75, 22.146446609406723], [-8.5, 22.25], [-8.25, 22.146446609406723], [-8.0, 22.25], [-7.4696699141101135, 22.03033008588991], [-7.25, 21.5], [-7.4696699141101135, 20.96966991411009], [-7.82322330470339, 20.82322330470336], [-7.853553390593277, 20.75], [-7.75, 20.5], [-7.9696699141101135, 19.96966991411009], [-8.32322330470339, 19.82322330470336], [-8.353553390593277, 19.75], [-8.25, 19.5], [-8.469669914110113, 18.96966991411009], [-8.82322330470339, 18.82322330470336], [-8.969669914110113, 18.46966991411009], [-9.5, 18.25], [-9.75, 18.353553390593277], [-10.0, 18.25], [-10.25, 18.353553390593277], [-10.32322330470339, 18.32322330470336], [-10.469669914110113, 17.96966991411009], [-11.0, 17.75], [-11.530330085889887, 17.96966991411009], [-11.67677669529661, 18.32322330470336], [-12.030330085889887, 18.46966991411009], [-12.17677669529661, 18.82322330470336], [-12.25, 18.853553390593277], [-12.5, 18.75], [-12.75, 18.853553390593277], [-13.0, 18.75], [-13.530330085889887, 18.96966991411009], [-13.67677669529661, 19.32322330470336], [-13.75, 19.353553390593277], [-14.0, 19.25], [-14.25, 19.353553390593277], [-14.5, 19.25], [-14.75, 19.353553390593277]]]}, "2020-06-28T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-14.75, 19.353553390593277], [-15.0, 19.25], [-15.530330085889887, 19.46966991411009], [-15.75, 20.0], [-15.530330085889887, 20.53033008588991], [-15.0, 20.75], [-14.75, 20.646446609406723], [-14.5, 20.75], [-14.25, 20.646446609406723], [-14.0, 20.75], [-13.75, 20.646446609406723], [-13.5, 20.75], [-13.25, 20.646446609406723], [-13.0, 20.75], [-12.75, 20.646446609406723], [-12.67677669529661, 20.67677669529664], [-12.530330085889887, 21.03033008588991], [-12.0, 21.25], [-11.75, 21.146446609406723], [-11.5, 21.25], [-11.25, 21.146446609406723], [-11.17677669529661, 21.17677669529664], [-11.030330085889887, 21.53033008588991], [-10.5, 21.75], [-10.25, 21.646446609406723], [-10.0, 21.75], [-9.75, 21.646446609406723], [-9.67677669529661, 21.67677669529664], [-9.646446609406723, 21.75], [-9.75, 22.0], [-9.530330085889887, 22.53033008588991], [-9.17677669529661, 22.67677669529664], [-9.146446609406723, 22.75], [-9.25, 23.0], [-9.146446609406723, 23.25], [-9.25, 23.5], [-9.030330085889887, 24.03033008588991], [-8.5, 24.25], [-8.25, 24.146446609406723], [-8.0, 24.25], [-7.4696699141101135, 24.03033008588991], [-7.32322330470339, 23.67677669529664], [-6.9696699141101135, 23.53033008588991], [-6.75, 23.0], [-6.9696699141101135, 22.46966991411009], [-7.32322330470339, 22.32322330470336], [-7.457106781186553, 22.0], [-7.25, 21.5], [-7.4696699141101135, 20.96966991411009], [-7.82322330470339, 20.82322330470336], [-7.853553390593277, 20.75], [-7.75, 20.5], [-7.9696699141101135, 19.96966991411009], [-8.32322330470339, 19.82322330470336], [-8.353553390593277, 19.75], [-8.25, 19.5], [-8.469669914110113, 18.96966991411009], [-8.82322330470339, 18.82322330470336], [-8.969669914110113, 18.46966991411009], [-9.5, 18.25], [-9.75, 18.353553390593277], [-10.0, 18.25], [-10.25, 18.353553390593277], [-10.32322330470339, 18.32322330470336], [-10.469669914110113, 17.96966991411009], [-11.0, 17.75], [-11.530330085889887, 17.96966991411009], [-11.67677669529661, 18.32322330470336], [-12.030330085889887, 18.46966991411009], [-12.17677669529661, 18.82322330470336], [-12.25, 18.853553390593277], [-12.5, 18.75], [-12.75, 18.853553390593277], [-13.0, 18.75], [-13.530330085889887, 18.96966991411009], [-13.67677669529661, 19.32322330470336], [-13.75, 19.353553390593277], [-14.0, 19.25], [-14.25, 19.353553390593277], [-14.5, 19.25], [-14.75, 19.353553390593277]]]}, "2020-06-29T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-13.75, 19.353553390593277], [-14.0, 19.25], [-14.530330085889887, 19.46966991411009], [-14.75, 20.0], [-14.530330085889887, 20.53033008588991], [-14.0, 20.75], [-13.75, 20.646446609406723], [-13.5, 20.75], [-13.25, 20.646446609406723], [-13.0, 20.75], [-12.75, 20.646446609406723], [-12.67677669529661, 20.67677669529664], [-12.530330085889887, 21.03033008588991], [-12.0, 21.25], [-11.75, 21.146446609406723], [-11.5, 21.25], [-11.25, 21.146446609406723], [-11.17677669529661, 21.17677669529664], [-11.030330085889887, 21.53033008588991], [-10.5, 21.75], [-10.25, 21.646446609406723], [-10.0, 21.75], [-9.75, 21.646446609406723], [-9.67677669529661, 21.67677669529664], [-9.646446609406723, 21.75], [-9.75, 22.0], [-9.530330085889887, 22.53033008588991], [-9.17677669529661, 22.67677669529664], [-9.146446609406723, 22.75], [-9.25, 23.0], [-9.146446609406723, 23.25], [-9.25, 23.5], [-9.030330085889887, 24.03033008588991], [-8.5, 24.25], [-8.25, 24.146446609406723], [-8.0, 24.25], [-7.4696699141101135, 24.03033008588991], [-7.32322330470339, 23.67677669529664], [-6.9696699141101135, 23.53033008588991], [-6.75, 23.0], [-6.9696699141101135, 22.46966991411009], [-7.32322330470339, 22.32322330470336], [-7.457106781186553, 22.0], [-7.25, 21.5], [-7.4696699141101135, 20.96966991411009], [-7.82322330470339, 20.82322330470336], [-7.853553390593277, 20.75], [-7.75, 20.5], [-7.9696699141101135, 19.96966991411009], [-8.32322330470339, 19.82322330470336], [-8.353553390593277, 19.75], [-8.25, 19.5], [-8.469669914110113, 18.96966991411009], [-8.82322330470339, 18.82322330470336], [-8.969669914110113, 18.46966991411009], [-9.5, 18.25], [-9.75, 18.353553390593277], [-10.0, 18.25], [-10.25, 18.353553390593277], [-10.32322330470339, 18.32322330470336], [-10.469669914110113, 17.96966991411009], [-11.0, 17.75], [-11.530330085889887, 17.96966991411009], [-11.67677669529661, 18.32322330470336], [-12.030330085889887, 18.46966991411009], [-12.17677669529661, 18.82322330470336], [-12.25, 18.853553390593277], [-12.5, 18.75], [-12.75, 18.853553390593277], [-13.0, 18.75], [-13.530330085889887, 18.96966991411009], [-13.67677669529661, 19.32322330470336], [-13.75, 19.353553390593277]]]}, "2020-06-30T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-10.146446609406723, 20.25], [-10.25, 20.5], [-10.146446609406723, 20.75], [-10.25, 21.0], [-10.030330085889887, 21.53033008588991], [-9.67677669529661, 21.67677669529664], [-9.646446609406723, 21.75], [-9.75, 22.0], [-9.530330085889887, 22.53033008588991], [-9.17677669529661, 22.67677669529664], [-9.146446609406723, 22.75], [-9.25, 23.0], [-9.146446609406723, 23.25], [-9.25, 23.5], [-9.030330085889887, 24.03033008588991], [-8.5, 24.25], [-8.25, 24.146446609406723], [-8.0, 24.25], [-7.4696699141101135, 24.03033008588991], [-7.32322330470339, 23.67677669529664], [-6.9696699141101135, 23.53033008588991], [-6.75, 23.0], [-6.9696699141101135, 22.46966991411009], [-7.32322330470339, 22.32322330470336], [-7.4696699141101135, 21.96966991411009], [-7.82322330470339, 21.82322330470336], [-7.853553390593277, 21.75], [-7.75, 21.5], [-7.853553390593277, 21.25], [-7.75, 21.0], [-7.9696699141101135, 20.46966991411009], [-8.32322330470339, 20.32322330470336], [-8.353553390593277, 20.25], [-8.25, 20.0], [-8.469669914110113, 19.46966991411009], [-9.0, 19.25], [-9.25, 19.353553390593277], [-9.5, 19.25], [-10.030330085889887, 19.46966991411009], [-10.25, 20.0], [-10.146446609406723, 20.25]]]}, "2020-07-01T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-9.25, 20.353553390593277], [-9.5, 20.25], [-10.030330085889887, 20.46966991411009], [-10.25, 21.0], [-10.030330085889887, 21.53033008588991], [-9.5, 21.75], [-9.25, 21.646446609406723], [-9.0, 21.75], [-8.469669914110113, 21.53033008588991], [-8.25, 21.0], [-8.469669914110113, 20.46966991411009], [-9.0, 20.25], [-9.25, 20.353553390593277]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.878579890023559}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.9688335907484094}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [36.61486858270342, 36.89846443026204, 38.24458152092268, 37.28432638629448, 37.59798878827439, 36.353818541630744]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [37.48916274614379, 39.29944158343386, 41.82789158725865, 40.063618320313026, 39.66361199289719, 36.41766904027696]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.4639342610709227, 2.666795836728842, 3.741110574233369, 2.7171133212421155, 2.3387278004327197, 1.9954920965953988]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.691447378602902, 3.601403166538546, 5.878579890023559, 3.626311370341398, 3.514618243897303, 2.0710053619326914]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.1847716125061296, 1.6597320406793699, 2.2487762837228016, 1.7097238204412746, 1.1675782300545474, 1.1787289918481059]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3004205118102468, 2.314970797946631, 3.2487020724010165, 2.4090459390476493, 1.3489343591203606, 1.1874303142376954]}}