{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:20:13.000224", "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-Dec-29_to_2021-Jan-02_314.5_-9.5"}, "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": 2020120003066}, "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": "December 29 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 02 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": 51698.061684085886}, "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": -9.5}, "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": 314.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "314.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 313.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 315.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -12.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -9.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[-46.75, -12.0], [-46.646, -11.75], [-46.75, -11.5], [-46.646, -11.25], [-46.75, -11.0], [-46.646, -10.751], [-46.646, -10.75], [-46.677, -10.677], [-47.03, -10.53], [-47.25, -10.0], [-47.03, -9.47], [-46.677, -9.323], [-46.53, -8.97], [-46.0, -8.75], [-45.751, -8.854], [-45.75, -8.854], [-45.677, -8.823], [-45.53, -8.47], [-45.0, -8.25], [-44.47, -8.47], [-44.25, -9.0], [-44.354, -9.25], [-44.344, -9.274], [-44.323, -9.323], [-43.97, -9.47], [-43.75, -10.0], [-43.854, -10.25], [-43.75, -10.5], [-43.854, -10.75], [-43.75, -11.0], [-43.97, -11.53], [-44.5, -11.75], [-45.03, -11.53], [-45.177, -11.177], [-45.25, -11.146], [-45.323, -11.177], [-45.354, -11.25], [-45.25, -11.5], [-45.354, -11.75], [-45.25, -12.0], [-45.47, -12.53], [-46.0, -12.75], [-46.53, -12.53], [-46.75, -12.0]]]}}, "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": {"2020-12-29T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-46.67677669529661, -10.676776695296637], [-47.03033008588989, -10.530330085889911], [-47.25, -10.0], [-47.03033008588989, -9.469669914110089], [-46.67677669529661, -9.323223304703363], [-46.53033008588989, -8.969669914110089], [-46.0, -8.75], [-45.75, -8.853553390593278], [-45.5, -8.75], [-44.96966991411011, -8.969669914110089], [-44.75, -9.5], [-44.95710678118655, -10.0], [-44.75, -10.5], [-44.96966991411011, -11.030330085889911], [-45.5, -11.25], [-45.75, -11.146446609406722], [-46.0, -11.25], [-46.53033008588989, -11.030330085889911], [-46.67677669529661, -10.676776695296637]]]}, "2020-12-30T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-46.67677669529661, -10.676776695296637], [-47.03033008588989, -10.530330085889911], [-47.25, -10.0], [-47.03033008588989, -9.469669914110089], [-46.67677669529661, -9.323223304703363], [-46.53033008588989, -8.969669914110089], [-46.0, -8.75], [-45.75, -8.853553390593278], [-45.5, -8.75], [-45.25, -8.853553390593278], [-45.0, -8.75], [-44.46966991411011, -8.969669914110089], [-44.25, -9.5], [-44.35355339059328, -9.75], [-44.25, -10.0], [-44.35355339059328, -10.25], [-44.25, -10.5], [-44.46966991411011, -11.030330085889911], [-45.0, -11.25], [-45.25, -11.146446609406722], [-45.32322330470339, -11.176776695296637], [-45.35355339059328, -11.25], [-45.25, -11.5], [-45.35355339059328, -11.75], [-45.25, -12.0], [-45.46966991411011, -12.530330085889911], [-46.0, -12.75], [-46.53033008588989, -12.530330085889911], [-46.75, -12.0], [-46.64644660940672, -11.75], [-46.75, -11.5], [-46.64644660940672, -11.25], [-46.75, -11.0], [-46.64644660940672, -10.75], [-46.67677669529661, -10.676776695296637]]]}, "2020-12-31T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-46.67677669529661, -10.676776695296637], [-47.03033008588989, -10.530330085889911], [-47.25, -10.0], [-47.03033008588989, -9.469669914110089], [-46.67677669529661, -9.323223304703363], [-46.53033008588989, -8.969669914110089], [-46.0, -8.75], [-45.75, -8.853553390593278], [-45.67677669529661, -8.823223304703363], [-45.53033008588989, -8.469669914110089], [-45.0, -8.25], [-44.46966991411011, -8.469669914110089], [-44.25, -9.0], [-44.35355339059328, -9.25], [-44.32322330470339, -9.323223304703363], [-43.96966991411011, -9.469669914110089], [-43.75, -10.0], [-43.85355339059328, -10.25], [-43.75, -10.5], [-43.85355339059328, -10.75], [-43.75, -11.0], [-43.96966991411011, -11.530330085889911], [-44.5, -11.75], [-45.03033008588989, -11.530330085889911], [-45.17677669529661, -11.176776695296637], [-45.25, -11.146446609406722], [-45.32322330470339, -11.176776695296637], [-45.35355339059328, -11.25], [-45.25, -11.5], [-45.35355339059328, -11.75], [-45.25, -12.0], [-45.46966991411011, -12.530330085889911], [-46.0, -12.75], [-46.53033008588989, -12.530330085889911], [-46.75, -12.0], [-46.64644660940672, -11.75], [-46.75, -11.5], [-46.64644660940672, -11.25], [-46.75, -11.0], [-46.64644660940672, -10.75], [-46.67677669529661, -10.676776695296637]]]}, "2021-01-01T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-46.67677669529661, -10.676776695296637], [-47.03033008588989, -10.530330085889911], [-47.25, -10.0], [-47.03033008588989, -9.469669914110089], [-46.67677669529661, -9.323223304703363], [-46.53033008588989, -8.969669914110089], [-46.0, -8.75], [-45.75, -8.853553390593278], [-45.67677669529661, -8.823223304703363], [-45.53033008588989, -8.469669914110089], [-45.0, -8.25], [-44.46966991411011, -8.469669914110089], [-44.25, -9.0], [-44.35355339059328, -9.25], [-44.32322330470339, -9.323223304703363], [-43.96966991411011, -9.469669914110089], [-43.75, -10.0], [-43.85355339059328, -10.25], [-43.75, -10.5], [-43.85355339059328, -10.75], [-43.75, -11.0], [-43.96966991411011, -11.530330085889911], [-44.5, -11.75], [-45.03033008588989, -11.530330085889911], [-45.17677669529661, -11.176776695296637], [-45.25, -11.146446609406722], [-45.32322330470339, -11.176776695296637], [-45.35355339059328, -11.25], [-45.25, -11.5], [-45.35355339059328, -11.75], [-45.25, -12.0], [-45.46966991411011, -12.530330085889911], [-46.0, -12.75], [-46.53033008588989, -12.530330085889911], [-46.75, -12.0], [-46.64644660940672, -11.75], [-46.75, -11.5], [-46.64644660940672, -11.25], [-46.75, -11.0], [-46.64644660940672, -10.75], [-46.67677669529661, -10.676776695296637]]]}, "2021-01-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-45.46966991411011, -12.530330085889911], [-46.0, -12.75], [-46.53033008588989, -12.530330085889911], [-46.75, -12.0], [-46.53033008588989, -11.469669914110089], [-46.0, -11.25], [-45.46966991411011, -11.469669914110089], [-45.25, -12.0], [-45.46966991411011, -12.530330085889911]]], [[[-46.25, -9.5], [-46.03033008588989, -8.969669914110089], [-45.67677669529661, -8.823223304703363], [-45.53033008588989, -8.469669914110089], [-45.0, -8.25], [-44.46966991411011, -8.469669914110089], [-44.25, -9.0], [-44.35355339059328, -9.25], [-44.32322330470339, -9.323223304703363], [-43.96966991411011, -9.469669914110089], [-43.75, -10.0], [-43.85355339059328, -10.25], [-43.75, -10.5], [-43.85355339059328, -10.75], [-43.75, -11.0], [-43.96966991411011, -11.530330085889911], [-44.5, -11.75], [-45.03033008588989, -11.530330085889911], [-45.17677669529661, -11.176776695296637], [-45.53033008588989, -11.030330085889911], [-45.67677669529661, -10.676776695296637], [-46.03033008588989, -10.530330085889911], [-46.25, -10.0], [-46.14644660940672, -9.75], [-46.25, -9.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.543056171451383}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.642195677126731}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.917341249933656, 27.48861434629424, 28.090821648741155, 28.011714551706064, 28.12143566152605]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.20947195571972, 29.736657609754673, 30.45776582062382, 30.498244185759575, 29.378953928401245]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.095149106422923, 2.533078973643604, 2.8907486609414197, 2.799455125586412, 2.3676895421402717]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.4152756066426946, 3.313379311517508, 4.039871750683233, 4.543056171451383, 2.8293681831582376]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4200237713495538, 1.6033981216978346, 1.8418517458474313, 1.8588014336648966, 1.525923419037984]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5912729014409865, 1.947676795961897, 2.3791026724033126, 2.7091096730360693, 1.794284934772419]}}