{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:18:57.481689", "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-Oct-06_to_2020-Oct-08_350.5_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": 2020100001470}, "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 06 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 08 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 78775.1693080155}, "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": 350.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "350.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 350.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 354.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 17.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 21.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[-9.75, 20.5], [-9.53, 21.03], [-9.177, 21.177], [-9.03, 21.53], [-8.5, 21.75], [-7.97, 21.53], [-7.823, 21.177], [-7.75, 21.146], [-7.5, 21.25], [-6.97, 21.03], [-6.823, 20.677], [-6.47, 20.53], [-6.25, 20.0], [-6.354, 19.75], [-6.25, 19.5], [-6.457, 19.0], [-6.323, 18.677], [-5.97, 18.53], [-5.823, 18.177], [-5.47, 18.03], [-5.25, 17.5], [-5.354, 17.25], [-5.25, 17.0], [-5.47, 16.47], [-6.0, 16.25], [-6.53, 16.47], [-6.677, 16.823], [-7.03, 16.97], [-7.177, 17.323], [-7.25, 17.354], [-7.5, 17.25], [-8.03, 17.47], [-8.25, 18.0], [-8.146, 18.25], [-8.177, 18.323], [-8.25, 18.354], [-8.5, 18.25], [-9.03, 18.47], [-9.177, 18.823], [-9.25, 18.854], [-9.5, 18.75], [-10.03, 18.97], [-10.25, 19.5], [-10.03, 20.03], [-9.677, 20.177], [-9.646, 20.25], [-9.75, 20.5]]]}}, "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": {"2020-10-06T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-9.67677669529661, 20.17677669529664], [-9.646446609406723, 20.25], [-9.75, 20.5], [-9.530330085889887, 21.03033008588991], [-9.17677669529661, 21.17677669529664], [-9.030330085889887, 21.53033008588991], [-8.5, 21.75], [-7.9696699141101135, 21.53033008588991], [-7.82322330470339, 21.17677669529664], [-7.75, 21.146446609406723], [-7.5, 21.25], [-6.9696699141101135, 21.03033008588991], [-6.82322330470339, 20.67677669529664], [-6.4696699141101135, 20.53033008588991], [-6.25, 20.0], [-6.353553390593277, 19.75], [-6.25, 19.5], [-6.457106781186553, 19.0], [-6.32322330470339, 18.67677669529664], [-5.9696699141101135, 18.53033008588991], [-5.82322330470339, 18.17677669529664], [-5.4696699141101135, 18.03033008588991], [-5.25, 17.5], [-5.353553390593277, 17.25], [-5.25, 17.0], [-5.4696699141101135, 16.46966991411009], [-6.0, 16.25], [-6.5303300858898865, 16.46966991411009], [-6.67677669529661, 16.82322330470336], [-7.0303300858898865, 16.96966991411009], [-7.17677669529661, 17.32322330470336], [-7.25, 17.353553390593277], [-7.5, 17.25], [-8.030330085889887, 17.46966991411009], [-8.25, 18.0], [-8.146446609406723, 18.25], [-8.17677669529661, 18.32322330470336], [-8.25, 18.353553390593277], [-8.5, 18.25], [-9.030330085889887, 18.46966991411009], [-9.17677669529661, 18.82322330470336], [-9.25, 18.853553390593277], [-9.5, 18.75], [-10.030330085889887, 18.96966991411009], [-10.25, 19.5], [-10.030330085889887, 20.03033008588991], [-9.67677669529661, 20.17677669529664]]]}, "2020-10-07T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-9.67677669529661, 20.17677669529664], [-9.646446609406723, 20.25], [-9.75, 20.5], [-9.530330085889887, 21.03033008588991], [-9.17677669529661, 21.17677669529664], [-9.030330085889887, 21.53033008588991], [-8.5, 21.75], [-7.9696699141101135, 21.53033008588991], [-7.82322330470339, 21.17677669529664], [-7.75, 21.146446609406723], [-7.5, 21.25], [-6.9696699141101135, 21.03033008588991], [-6.82322330470339, 20.67677669529664], [-6.4696699141101135, 20.53033008588991], [-6.25, 20.0], [-6.353553390593277, 19.75], [-6.25, 19.5], [-6.457106781186553, 19.0], [-6.32322330470339, 18.67677669529664], [-5.9696699141101135, 18.53033008588991], [-5.82322330470339, 18.17677669529664], [-5.4696699141101135, 18.03033008588991], [-5.25, 17.5], [-5.353553390593277, 17.25], [-5.25, 17.0], [-5.4696699141101135, 16.46966991411009], [-6.0, 16.25], [-6.5303300858898865, 16.46966991411009], [-6.67677669529661, 16.82322330470336], [-7.0303300858898865, 16.96966991411009], [-7.17677669529661, 17.32322330470336], [-7.25, 17.353553390593277], [-7.5, 17.25], [-8.030330085889887, 17.46966991411009], [-8.25, 18.0], [-8.146446609406723, 18.25], [-8.17677669529661, 18.32322330470336], [-8.25, 18.353553390593277], [-8.5, 18.25], [-9.030330085889887, 18.46966991411009], [-9.17677669529661, 18.82322330470336], [-9.25, 18.853553390593277], [-9.5, 18.75], [-10.030330085889887, 18.96966991411009], [-10.25, 19.5], [-10.030330085889887, 20.03033008588991], [-9.67677669529661, 20.17677669529664]]]}, "2020-10-08T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-9.67677669529661, 20.17677669529664], [-9.646446609406723, 20.25], [-9.75, 20.5], [-9.530330085889887, 21.03033008588991], [-9.17677669529661, 21.17677669529664], [-9.030330085889887, 21.53033008588991], [-8.5, 21.75], [-7.9696699141101135, 21.53033008588991], [-7.82322330470339, 21.17677669529664], [-7.75, 21.146446609406723], [-7.5, 21.25], [-6.9696699141101135, 21.03033008588991], [-6.82322330470339, 20.67677669529664], [-6.4696699141101135, 20.53033008588991], [-6.25, 20.0], [-6.353553390593277, 19.75], [-6.25, 19.5], [-6.457106781186553, 19.0], [-6.32322330470339, 18.67677669529664], [-5.9696699141101135, 18.53033008588991], [-5.82322330470339, 18.17677669529664], [-5.4696699141101135, 18.03033008588991], [-5.25, 17.5], [-5.353553390593277, 17.25], [-5.25, 17.0], [-5.4696699141101135, 16.46966991411009], [-6.0, 16.25], [-6.5303300858898865, 16.46966991411009], [-6.67677669529661, 16.82322330470336], [-7.0303300858898865, 16.96966991411009], [-7.17677669529661, 17.32322330470336], [-7.25, 17.353553390593277], [-7.5, 17.25], [-8.030330085889887, 17.46966991411009], [-8.25, 18.0], [-8.146446609406723, 18.25], [-8.17677669529661, 18.32322330470336], [-8.25, 18.353553390593277], [-8.5, 18.25], [-9.030330085889887, 18.46966991411009], [-9.17677669529661, 18.82322330470336], [-9.25, 18.853553390593277], [-9.5, 18.75], [-10.030330085889887, 18.96966991411009], [-10.25, 19.5], [-10.030330085889887, 20.03033008588991], [-9.67677669529661, 20.17677669529664]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.564719285857734}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.069846925705704}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [32.967050647512735, 34.10413342674235, 32.87751238945907]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [33.79421423816194, 35.54211139393436, 33.9835421470471]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.5271384926331764, 3.8773553944147543, 2.8050468900691814]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.8924630452792144, 4.564719285857734, 4.2589624378437065]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3922161815655, 2.0788785441161357, 1.4585350132397665]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7007511534125566, 2.556765365612542, 2.2665623804095962]}}