{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:13:24.382579", "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-29_to_2020-May-31_323.0_-8.5"}, "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": 2020050000731}, "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 29 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 31 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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 61207.04570523628}, "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": ["Brazil"]}, "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": -8.5}, "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": 323.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "323.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 321.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 323.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -9.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -6.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[-39.53, -6.97], [-39.0, -6.75], [-38.75, -6.854], [-38.677, -6.823], [-38.646, -6.75], [-38.75, -6.5], [-38.53, -5.97], [-38.0, -5.75], [-37.47, -5.97], [-37.323, -6.323], [-36.97, -6.47], [-36.75, -7.0], [-36.854, -7.25], [-36.823, -7.323], [-36.47, -7.47], [-36.25, -8.0], [-36.354, -8.25], [-36.25, -8.5], [-36.354, -8.75], [-36.25, -9.0], [-36.354, -9.25], [-36.25, -9.5], [-36.47, -10.03], [-37.0, -10.25], [-37.53, -10.03], [-37.677, -9.677], [-37.75, -9.646], [-38.0, -9.75], [-38.53, -9.53], [-38.677, -9.177], [-39.03, -9.03], [-39.177, -8.677], [-39.53, -8.53], [-39.75, -8.0], [-39.646, -7.75], [-39.75, -7.5], [-39.53, -6.97]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-05-29T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-39.64644660940672, -7.75], [-39.75, -7.5], [-39.53033008588989, -6.9696699141100895], [-39.0, -6.75], [-38.75, -6.853553390593278], [-38.67677669529661, -6.8232233047033635], [-38.64644660940672, -6.75], [-38.75, -6.5], [-38.53033008588989, -5.9696699141100895], [-38.0, -5.75], [-37.46966991411011, -5.9696699141100895], [-37.32322330470339, -6.3232233047033635], [-36.96966991411011, -6.4696699141100895], [-36.75, -7.0], [-36.85355339059328, -7.25], [-36.82322330470339, -7.3232233047033635], [-36.46966991411011, -7.4696699141100895], [-36.25, -8.0], [-36.35355339059328, -8.25], [-36.25, -8.5], [-36.35355339059328, -8.75], [-36.25, -9.0], [-36.35355339059328, -9.25], [-36.25, -9.5], [-36.46966991411011, -10.030330085889911], [-37.0, -10.25], [-37.53033008588989, -10.030330085889911], [-37.67677669529661, -9.676776695296637], [-37.75, -9.646446609406722], [-38.0, -9.75], [-38.53033008588989, -9.530330085889911], [-38.67677669529661, -9.176776695296637], [-39.03033008588989, -9.030330085889911], [-39.17677669529661, -8.676776695296637], [-39.53033008588989, -8.530330085889911], [-39.75, -8.0], [-39.64644660940672, -7.75]]]}, "2020-05-30T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-39.64644660940672, -7.75], [-39.75, -7.5], [-39.53033008588989, -6.9696699141100895], [-39.0, -6.75], [-38.75, -6.853553390593278], [-38.67677669529661, -6.8232233047033635], [-38.64644660940672, -6.75], [-38.75, -6.5], [-38.53033008588989, -5.9696699141100895], [-38.0, -5.75], [-37.46966991411011, -5.9696699141100895], [-37.32322330470339, -6.3232233047033635], [-36.96966991411011, -6.4696699141100895], [-36.75, -7.0], [-36.85355339059328, -7.25], [-36.82322330470339, -7.3232233047033635], [-36.46966991411011, -7.4696699141100895], [-36.25, -8.0], [-36.35355339059328, -8.25], [-36.25, -8.5], [-36.35355339059328, -8.75], [-36.25, -9.0], [-36.35355339059328, -9.25], [-36.25, -9.5], [-36.46966991411011, -10.030330085889911], [-37.0, -10.25], [-37.53033008588989, -10.030330085889911], [-37.67677669529661, -9.676776695296637], [-37.75, -9.646446609406722], [-38.0, -9.75], [-38.53033008588989, -9.530330085889911], 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[20.74699564473002, 20.612517831565185, 21.12710289777334]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.103984890023233, -2.401345149306235, -1.8208733156463097]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.611253218126649, -3.0053646189389838, -2.201377162308688]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7514756614336844, -2.0371477768701016, -1.5862580155473893]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.3063443263286394, -2.481007092192923, -1.9514557512364]}}