{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:13:28.751849", "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-May-05_to_2020-May-09_306.5_5.5"}, "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": 2020050001360}, "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 05 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 09 2020"}, "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": 52194.58038052324}, "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": ["French Guiana"]}, "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": ["Atlantic 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": 5.5}, "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": 306.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "306.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 306.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 308.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 5.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 7.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[-54.03, 4.97], [-54.25, 5.5], [-54.146, 5.75], [-54.25, 6.0], [-54.043, 6.5], [-54.177, 6.823], [-54.53, 6.97], [-54.75, 7.5], [-54.53, 8.03], [-54.0, 8.25], [-53.75, 8.146], [-53.749, 8.146], [-53.5, 8.25], [-53.251, 8.146], [-53.25, 8.146], [-53.0, 8.25], [-52.75, 8.146], [-52.5, 8.25], [-51.97, 8.03], [-51.823, 7.677], [-51.47, 7.53], [-51.25, 7.0], [-51.354, 6.75], [-51.25, 6.5], [-51.354, 6.25], [-51.25, 6.0], [-51.47, 5.47], [-52.0, 5.25], [-52.25, 5.354], [-52.323, 5.323], [-52.47, 4.97], [-53.0, 4.75], [-53.25, 4.854], [-53.5, 4.75], [-54.03, 4.97]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-05-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-52.96966991411011, 6.0303300858899105], [-52.75, 5.5], [-52.96966991411011, 4.9696699141100895], [-53.5, 4.75], [-54.03033008588989, 4.9696699141100895], [-54.25, 5.5], [-54.03033008588989, 6.0303300858899105], [-53.5, 6.25], [-52.96966991411011, 6.0303300858899105]]], [[[-54.53033008588989, 6.9696699141100895], [-54.75, 7.5], [-54.53033008588989, 8.030330085889911], [-54.0, 8.25], [-53.5, 8.042893218813443], [-53.0, 8.25], [-52.46966991411011, 8.030330085889911], [-52.32322330470339, 7.6767766952966365], [-52.25, 7.646446609406722], [-52.0, 7.75], [-51.46966991411011, 7.5303300858899105], [-51.25, 7.0], [-51.46966991411011, 6.4696699141100895], [-52.0, 6.25], [-52.25, 6.353553390593278], [-52.5, 6.25], [-52.75, 6.353553390593278], [-53.0, 6.25], [-53.25, 6.353553390593278], [-53.5, 6.25], [-54.03033008588989, 6.4696699141100895], [-54.17677669529661, 6.8232233047033635], [-54.53033008588989, 6.9696699141100895]]]]}, "2020-05-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-52.96966991411011, 6.0303300858899105], [-52.75, 5.5], [-52.96966991411011, 4.9696699141100895], [-53.5, 4.75], [-54.03033008588989, 4.9696699141100895], [-54.25, 5.5], [-54.03033008588989, 6.0303300858899105], [-53.5, 6.25], [-52.96966991411011, 6.0303300858899105]]], [[[-54.53033008588989, 6.9696699141100895], [-54.75, 7.5], [-54.53033008588989, 8.030330085889911], [-54.0, 8.25], [-53.75, 8.146446609406722], [-53.5, 8.25], [-53.25, 8.146446609406722], [-53.0, 8.25], [-52.75, 8.146446609406722], [-52.5, 8.25], [-51.96966991411011, 8.030330085889911], [-51.82322330470339, 7.6767766952966365], [-51.46966991411011, 7.5303300858899105], [-51.25, 7.0], [-51.46966991411011, 6.4696699141100895], [-52.0, 6.25], [-52.25, 6.353553390593278], [-52.5, 6.25], [-52.75, 6.353553390593278], [-53.0, 6.25], [-53.25, 6.353553390593278], [-53.5, 6.25], [-54.03033008588989, 6.4696699141100895], [-54.17677669529661, 6.8232233047033635], [-54.53033008588989, 6.9696699141100895]]]]}, "2020-05-07T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-54.17677669529661, 6.8232233047033635], [-54.53033008588989, 6.9696699141100895], [-54.75, 7.5], [-54.53033008588989, 8.030330085889911], [-54.0, 8.25], [-53.75, 8.146446609406722], [-53.5, 8.25], [-53.25, 8.146446609406722], [-53.0, 8.25], [-52.75, 8.146446609406722], [-52.5, 8.25], [-51.96966991411011, 8.030330085889911], [-51.82322330470339, 7.6767766952966365], [-51.46966991411011, 7.5303300858899105], [-51.25, 7.0], [-51.35355339059328, 6.75], [-51.25, 6.5], [-51.35355339059328, 6.25], [-51.25, 6.0], [-51.46966991411011, 5.4696699141100895], [-52.0, 5.25], [-52.25, 5.353553390593278], [-52.32322330470339, 5.3232233047033635], [-52.46966991411011, 4.9696699141100895], [-53.0, 4.75], [-53.25, 4.853553390593278], [-53.5, 4.75], [-54.03033008588989, 4.9696699141100895], [-54.25, 5.5], [-54.14644660940672, 5.75], [-54.25, 6.0], [-54.04289321881345, 6.5], [-54.17677669529661, 6.8232233047033635]]]}, "2020-05-08T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-54.17677669529661, 6.8232233047033635], [-54.53033008588989, 6.9696699141100895], [-54.75, 7.5], [-54.53033008588989, 8.030330085889911], [-54.0, 8.25], [-53.75, 8.146446609406722], [-53.5, 8.25], [-53.25, 8.146446609406722], [-53.0, 8.25], [-52.75, 8.146446609406722], [-52.5, 8.25], [-51.96966991411011, 8.030330085889911], [-51.82322330470339, 7.6767766952966365], [-51.46966991411011, 7.5303300858899105], [-51.25, 7.0], [-51.35355339059328, 6.75], [-51.25, 6.5], [-51.35355339059328, 6.25], [-51.25, 6.0], [-51.46966991411011, 5.4696699141100895], [-52.0, 5.25], [-52.25, 5.353553390593278], [-52.32322330470339, 5.3232233047033635], [-52.46966991411011, 4.9696699141100895], [-53.0, 4.75], [-53.25, 4.853553390593278], [-53.5, 4.75], [-54.03033008588989, 4.9696699141100895], [-54.25, 5.5], [-54.14644660940672, 5.75], [-54.25, 6.0], [-54.04289321881345, 6.5], [-54.17677669529661, 6.8232233047033635]]]}, "2020-05-09T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-54.14644660940672, 5.75], [-54.25, 6.0], [-54.03033008588989, 6.5303300858899105], [-53.67677669529661, 6.6767766952966365], [-53.53033008588989, 7.0303300858899105], [-53.0, 7.25], [-52.75, 7.146446609406722], [-52.5, 7.25], [-52.25, 7.146446609406722], [-52.0, 7.25], [-51.46966991411011, 7.0303300858899105], [-51.25, 6.5], [-51.35355339059328, 6.25], [-51.25, 6.0], [-51.46966991411011, 5.4696699141100895], [-52.0, 5.25], [-52.25, 5.353553390593278], [-52.32322330470339, 5.3232233047033635], [-52.46966991411011, 4.9696699141100895], [-53.0, 4.75], [-53.25, 4.853553390593278], [-53.5, 4.75], [-54.03033008588989, 4.9696699141100895], [-54.25, 5.5], [-54.14644660940672, 5.75]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.1847051628722056}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.7619271794439885}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.34818340559451, 27.362335172063013, 27.40165366588525, 27.530219354414612, 27.29674005714321]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.452021836747747, 27.497813175921976, 27.540551759151356, 27.67338578065352, 27.468068374407096]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.676653918833584, 0.6537585719158364, 0.7463456659598231, 0.8720866871852709, 0.7577721116279008]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.8787562725566431, 0.7358197744731569, 0.89656051997747, 1.1847051628722056, 0.8531913190390696]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5468607163875734, 1.4935831386637755, 1.6371491013924073, 1.9091620718518263, 1.6010155875403587]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.643310484049893, 1.666624368553325, 1.7797311659780513, 2.4223150331268397, 1.8414356977560766]}}