3f:null 40:["$","title",null,{"children":"Hurricane trends in the Atlantic Ocean, 1990-2022 | Nicole Lillian Mark | Observable"}] 46:T408,/** * Converts a numeric value to a formatted year string * @param {number} value - The numeric value to convert to a year * @param {string} format - Optional formatting string (default: year only) * @returns {string} The formatted year string */ function numberToYear(value, format = "year") { // Ensure the input is treated as a number const yearNum = +value; // Create a D3 time formatter based on the requested format let formatter; switch (format) { case "year": formatter = d3.timeFormat("%Y"); break; case "short": formatter = d3.timeFormat("%y"); break; case "full": formatter = d3.timeFormat("%B %Y"); break; case "abbr": formatter = d3.timeFormat("%b %Y"); break; default: formatter = d3.timeFormat("%Y"); } // Convert the number to a Date object (assuming the number represents a year) const date = new Date(yearNum, 0, 1); // January 1st of the given year // Return the formatted year string return formatter(date); }47:[{"id":"07efa6196af623957e56c451c939bab5ad0034d29401f518befb3fa7a29f71d756e37cf30f3171f232e5dbe8051dade4310c3499afecc161d6924caa73583221","href":"https://static.observableusercontent.com/files/07efa6196af623957e56c451c939bab5ad0034d29401f518befb3fa7a29f71d756e37cf30f3171f232e5dbe8051dade4310c3499afecc161d6924caa73583221","name":"hurricanes.json","type":"application/json","lastModified":1741053442433.77,"size":3667}] 44:{"id":"adcf6b499850ace5","slug":"atlantic-hurricane-trends","title":"Hurricane trends in the Atlantic Ocean, 1990-2022","thumbnail":"da53913ebb67884f34ac34f124b1ff5cba010df1caafb6890db0d84e64facd9f","access_level":"public","create_time":"$D2025-03-04T01:57:11.747Z","update_time":"$D2025-03-04T08:28:34.031Z","view_time":null,"first_public_time":"$D2025-03-04T01:57:11.747Z","has_unpublished_edits":null,"fork":false,"stars":0,"starred":false,"owner":{"type":"team","id":"14a810c076bb557c","login":"nicolelily","name":"Nicole Lillian Mark","avatar_url":"https://avatars-next.observableusercontent.com/13ae6eb1e526671bc80a343de7594613b8919a924304099b6bb8c9240f1bbf35","tier":"starter_2024","bio":"Principal, Nicole Designs Data LLC | Founder, U.S. Breed-Specific Legislation Database Project","following":false},"version":952,"publish_version":null,"role":null,"authored":false,"authors":[{"type":"individual","id":"16ca2b2ddb06adec","login":"nicolelily","name":"Nicole Lillian Mark","avatar_url":"https://avatars-next.observableusercontent.com/13ae6eb1e526671bc80a343de7594613b8919a924304099b6bb8c9240f1bbf35","tier":null,"bio":"Principal, Nicole Designs Data LLC | Founder, U.S. Breed-Specific Legislation Database Project","following":false}],"members":[{"type":"team","id":"14a810c076bb557c","login":"nicolelily","name":"Nicole Lillian Mark","avatar_url":"https://avatars-next.observableusercontent.com/13ae6eb1e526671bc80a343de7594613b8919a924304099b6bb8c9240f1bbf35","tier":"starter_2024","role":"editor"},{"type":"individual","id":"16ca2b2ddb06adec","login":"nicolelily","name":"Nicole Lillian Mark","avatar_url":"https://avatars-next.observableusercontent.com/13ae6eb1e526671bc80a343de7594613b8919a924304099b6bb8c9240f1bbf35","tier":null,"role":"editor"}],"comments":[],"custom_thumbnail":false,"trashed":false,"lapsed":null,"subscribed":null,"forks":0,"collection":null,"type":"notebook","body":{"titling":"auto","title":"Hurricane trends in the Atlantic Ocean, 1990-2022","cells":[{"id":0,"value":"

Hurricane trends in the Atlantic Ocean, 1990-2022

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Hurricane Season

A hurricane is a type of storm called a tropical cyclone. In the United States, hurricane season begins on June 1 and ends on November 30, although a hurricane can happen any time given the right conditions

Tropical Storms, Hurricanes, and Major Hurricanes in the Atlantic Ocean, by Year

Tropical storms by year and type

","pinned":false,"hidden":false,"mode":"html","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":738,"value":"SELECT DISTINCT Year as year,\n AVG(tropicalStorms) as average_number_of_tropical_storms,\n AVG(hurricanes) as average_number_of_hurricanes,\n AVG(majorHurricanes) as average_number_of_major_hurricanes,\n ROUND((AVG(percentMajor) * 100), 1) as percentage_major_hurricanes\n FROM storms\n GROUP BY Year;\n","pinned":false,"hidden":false,"mode":"sql","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"clean","database":"var:storms"},{"id":766,"value":"clean","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":557,"value":"storms","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":133,"value":"storms = hurricanes.map((d) => ({\n Year: numberToYear(d.year),\n tropicalStorms: d.tropicalStorms,\n hurricanes: d.hurricanes,\n majorHurricanes: d.majorHurricanes,\n percentMajor: (d.majorHurricanes/d.hurricanes)\n}))","pinned":false,"hidden":true,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":548,"value":"hurricanes = FileAttachment(\"hurricanes.json\").json()","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":250,"value":"$46","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":94,"value":"Plot.plot({\n y: { grid: true, domain: [0, 1] },\n marks: [\n // Plot.lineY(storms, {x: \"Year\", y: \"Tropical Storms\", stroke:\"green\"}),\n Plot.lineY(storms, {x: \"Year\", y: \"percentMajor\", stroke: \"#006d77\"}),\n // Plot.lineY(storms, {x: \"Year\", y: \"hurricanes\", stroke: \"blue\"}),\n Plot.ruleY([0])\n ],\n width: 1000\n})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"}],"files":"$W47","stdlib":"1"}} 45:"$44:body"