{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:24:53.003718", "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": "2021-May-25_to_2021-May-29_292.5_-18.0"}, "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": 2021050002796}, "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": "May 25 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 29 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 62047.64279835916}, "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": ["Bolivia, Plurinational State of"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": -18.0}, "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": 292.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "292.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 291.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 295.0}, "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": -14.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[-69.75, -17.5], [-69.53, -16.97], [-69.0, -16.75], [-68.75, -16.854], [-68.5, -16.75], [-68.25, -16.854], [-68.125, -16.802], [-68.177, -16.677], [-68.53, -16.53], [-68.75, -16.0], [-68.646, -15.75], [-68.677, -15.677], [-69.03, -15.53], [-69.177, -15.177], [-69.53, -15.03], [-69.75, -14.5], [-69.53, -13.97], [-69.0, -13.75], [-68.47, -13.97], [-68.323, -14.323], [-67.97, -14.47], [-67.823, -14.823], [-67.5, -14.957], [-67.0, -14.75], [-66.47, -14.97], [-66.25, -15.5], [-66.47, -16.03], [-66.823, -16.177], [-66.854, -16.25], [-66.823, -16.323], [-66.75, -16.354], [-66.749, -16.354], [-66.5, -16.25], [-65.97, -16.47], [-65.823, -16.823], [-65.47, -16.97], [-65.323, -17.323], [-65.25, -17.354], [-65.249, -17.354], [-65.0, -17.25], [-64.47, -17.47], [-64.25, -18.0], [-64.47, -18.53], [-65.0, -18.75], [-65.249, -18.646], [-65.25, -18.646], [-65.323, -18.677], [-65.47, -19.03], [-66.0, -19.25], [-66.53, -19.03], [-66.677, -18.677], [-66.75, -18.646], [-66.823, -18.677], [-66.97, -19.03], [-67.5, -19.25], [-68.03, -19.03], [-68.25, -18.5], [-68.146, -18.251], [-68.146, -18.25], [-68.177, -18.177], [-68.25, -18.146], [-68.5, -18.25], [-68.75, -18.146], [-69.0, -18.25], [-69.53, -18.03], [-69.75, -17.5]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["South-American-Monsoon", "S.W.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-05-25T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-68.75, -18.146446609406723], [-69.0, -18.25], [-69.53033008588989, -18.03033008588991], [-69.75, -17.5], [-69.53033008588989, -16.96966991411009], [-69.0, -16.75], [-68.75, -16.853553390593277], [-68.5, -16.75], [-68.25, -16.853553390593277], [-68.0, -16.75], [-67.46966991411011, -16.96966991411009], [-67.32322330470339, -17.32322330470336], [-66.96966991411011, -17.46966991411009], [-66.75, -18.0], [-66.85355339059328, -18.25], [-66.75, -18.5], [-66.96966991411011, -19.03033008588991], [-67.5, -19.25], [-68.03033008588989, -19.03033008588991], [-68.25, -18.5], [-68.14644660940672, -18.25], [-68.17677669529661, -18.17677669529664], [-68.25, -18.146446609406723], [-68.5, -18.25], [-68.75, -18.146446609406723]]]}, "2021-05-26T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-68.75, -18.146446609406723], [-69.0, -18.25], [-69.53033008588989, -18.03033008588991], [-69.75, -17.5], [-69.53033008588989, -16.96966991411009], [-69.0, -16.75], [-68.75, -16.853553390593277], [-68.5, -16.75], [-68.25, -16.853553390593277], [-68.125, -16.801776695296635], [-68.25, -16.5], [-68.14644660940672, -16.25], [-68.25, -16.0], [-68.03033008588989, -15.469669914110089], [-67.5, -15.25], [-66.96966991411011, -15.469669914110089], [-66.75, -16.0], [-66.85355339059328, -16.25], [-66.82322330470339, -16.32322330470336], [-66.75, -16.353553390593277], [-66.5, -16.25], [-65.96966991411011, -16.46966991411009], [-65.82322330470339, -16.82322330470336], [-65.46966991411011, -16.96966991411009], [-65.32322330470339, -17.32322330470336], [-64.96966991411011, -17.46966991411009], [-64.75, -18.0], [-64.96966991411011, -18.53033008588991], [-65.32322330470339, -18.67677669529664], [-65.46966991411011, -19.03033008588991], [-66.0, -19.25], [-66.53033008588989, -19.03033008588991], [-66.67677669529661, -18.67677669529664], [-66.75, -18.646446609406723], [-66.82322330470339, -18.67677669529664], [-66.96966991411011, -19.03033008588991], [-67.5, -19.25], [-68.03033008588989, -19.03033008588991], [-68.25, -18.5], [-68.14644660940672, -18.25], [-68.17677669529661, -18.17677669529664], [-68.25, -18.146446609406723], [-68.5, -18.25], [-68.75, -18.146446609406723]]]}, "2021-05-27T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-69.17677669529661, -15.176776695296637], [-69.53033008588989, -15.030330085889911], [-69.75, -14.5], [-69.53033008588989, -13.969669914110089], [-69.0, -13.75], [-68.46966991411011, -13.969669914110089], [-68.32322330470339, -14.323223304703363], [-67.96966991411011, -14.469669914110089], [-67.82322330470339, -14.823223304703363], [-67.5, -14.957106781186557], [-67.0, -14.75], [-66.46966991411011, -14.969669914110089], [-66.25, -15.5], [-66.46966991411011, -16.03033008588991], [-66.82322330470339, -16.17677669529664], [-66.85355339059328, -16.25], [-66.82322330470339, -16.32322330470336], [-66.75, -16.353553390593277], [-66.5, -16.25], [-65.96966991411011, -16.46966991411009], [-65.82322330470339, -16.82322330470336], [-65.46966991411011, -16.96966991411009], [-65.32322330470339, -17.32322330470336], [-65.25, -17.353553390593277], [-65.0, -17.25], [-64.46966991411011, -17.46966991411009], [-64.25, -18.0], [-64.46966991411011, -18.53033008588991], [-65.0, -18.75], [-65.25, -18.646446609406723], [-65.32322330470339, -18.67677669529664], [-65.46966991411011, -19.03033008588991], [-66.0, -19.25], [-66.53033008588989, -19.03033008588991], [-66.67677669529661, -18.67677669529664], [-66.75, -18.646446609406723], [-66.82322330470339, -18.67677669529664], [-66.96966991411011, -19.03033008588991], [-67.5, -19.25], [-68.03033008588989, -19.03033008588991], [-68.25, -18.5], [-68.14644660940672, -18.25], [-68.17677669529661, -18.17677669529664], [-68.25, -18.146446609406723], [-68.5, -18.25], [-68.75, -18.146446609406723], [-69.0, -18.25], [-69.53033008588989, -18.03033008588991], [-69.75, -17.5], [-69.53033008588989, -16.96966991411009], [-69.0, -16.75], [-68.75, -16.853553390593277], [-68.5, -16.75], [-68.25, -16.853553390593277], [-68.125, -16.801776695296635], [-68.17677669529661, -16.67677669529664], [-68.53033008588989, -16.53033008588991], [-68.75, -16.0], [-68.64644660940672, -15.75], [-68.67677669529661, -15.676776695296637], [-69.03033008588989, -15.530330085889911], [-69.17677669529661, -15.176776695296637]]]}, "2021-05-28T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-69.17677669529661, -15.176776695296637], [-69.53033008588989, -15.030330085889911], [-69.75, -14.5], [-69.53033008588989, -13.969669914110089], [-69.0, -13.75], [-68.46966991411011, -13.969669914110089], [-68.32322330470339, -14.323223304703363], [-67.96966991411011, -14.469669914110089], [-67.82322330470339, -14.823223304703363], [-67.5, -14.957106781186557], [-67.0, -14.75], [-66.46966991411011, -14.969669914110089], [-66.25, -15.5], [-66.46966991411011, -16.03033008588991], [-66.82322330470339, -16.17677669529664], [-66.85355339059328, -16.25], [-66.82322330470339, -16.32322330470336], [-66.75, -16.353553390593277], [-66.5, -16.25], [-65.96966991411011, -16.46966991411009], [-65.82322330470339, -16.82322330470336], [-65.46966991411011, -16.96966991411009], [-65.32322330470339, -17.32322330470336], [-65.25, -17.353553390593277], [-65.0, -17.25], [-64.46966991411011, -17.46966991411009], [-64.25, -18.0], [-64.46966991411011, -18.53033008588991], [-65.0, -18.75], [-65.25, -18.646446609406723], [-65.32322330470339, -18.67677669529664], [-65.46966991411011, -19.03033008588991], [-66.0, -19.25], [-66.53033008588989, -19.03033008588991], [-66.67677669529661, -18.67677669529664], [-66.75, -18.646446609406723], [-67.0, -18.75], [-67.25, -18.646446609406723], [-67.5, -18.75], [-68.03033008588989, -18.53033008588991], [-68.17677669529661, -18.17677669529664], [-68.25, -18.146446609406723], [-68.5, -18.25], [-69.03033008588989, -18.03033008588991], [-69.25, -17.5], [-69.03033008588989, -16.96966991411009], [-68.5, -16.75], [-68.25, -16.853553390593277], [-68.125, -16.801776695296635], [-68.17677669529661, -16.67677669529664], [-68.53033008588989, -16.53033008588991], [-68.75, -16.0], [-68.64644660940672, -15.75], [-68.67677669529661, -15.676776695296637], [-69.03033008588989, -15.530330085889911], [-69.17677669529661, -15.176776695296637]]]}, "2021-05-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.5, -18.75], [-66.03033008588989, -18.53033008588991], [-66.25, -18.0], [-66.03033008588989, -17.46966991411009], [-65.5, -17.25], [-65.25, -17.353553390593277], [-65.0, -17.25], [-64.46966991411011, -17.46966991411009], [-64.25, -18.0], [-64.46966991411011, -18.53033008588991], [-65.0, -18.75], [-65.25, -18.646446609406723], [-65.5, -18.75]]], [[[-69.53033008588989, -15.030330085889911], [-69.75, -14.5], [-69.53033008588989, -13.969669914110089], [-69.0, -13.75], [-68.46966991411011, -13.969669914110089], [-68.32322330470339, -14.323223304703363], [-67.96966991411011, -14.469669914110089], [-67.82322330470339, -14.823223304703363], [-67.5, -14.957106781186557], [-67.0, -14.75], [-66.46966991411011, -14.969669914110089], [-66.25, -15.5], [-66.46966991411011, -16.03033008588991], [-66.82322330470339, -16.17677669529664], [-66.85355339059328, -16.25], [-66.82322330470339, -16.32322330470336], [-66.46966991411011, -16.46966991411009], [-66.25, -17.0], [-66.46966991411011, -17.53033008588991], [-67.0, -17.75], [-67.53033008588989, -17.53033008588991], [-67.67677669529661, -17.17677669529664], [-68.03033008588989, -17.03033008588991], [-68.17677669529661, -16.67677669529664], [-68.53033008588989, -16.53033008588991], [-68.75, -16.0], [-68.64644660940672, -15.75], [-68.67677669529661, -15.676776695296637], [-69.03033008588989, -15.530330085889911], [-69.17677669529661, -15.176776695296637], [-69.53033008588989, -15.030330085889911]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.4513817573605365}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.2775467950437394}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [8.739219674584888, 11.924357721800845, 13.419662926943772, 13.854254764736595, 16.884600769562667]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.816845832154058, 18.749799506740317, 22.48512402411177, 22.82825164524826, 22.931526960590247]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.3368914066507616, 2.4681943379434075, 2.2622538979291806, 2.134594982228841, 2.2656267031796062]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.711838279027745, 3.4513817573605365, 2.989622281034997, 3.2360141366705193, 3.334170956583023]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6727773554669625, 1.9012086144942328, 1.6600999608390825, 1.6008384528718387, 1.588661183162145]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9500923015537253, 2.4203167340869447, 2.2601663869175295, 2.2102468378482034, 2.086336984292864]}}