31:T487,transform = raw => { let tall = [] raw .filter(d => d.date !== '02-29') // filter out leap days because god help me dates are weird .forEach(d => { years // .filter(d => +d >= 1991) .forEach(year => { const rawDate = d.date // mm-dd format const month = +rawDate.slice(0,2) const waterYear = year const calendarYear = (month >= 10) ? String(+waterYear - 1) : year const calendarDate = new Date(rawDate + '-' + calendarYear) const dayOfWaterYear = d3.timeDay.count(new Date(`10/01/${+year-1}`), calendarDate) + 1 tall = tall.concat([ { waterYear, rawDate, calendarDate, dayOfWaterYear, swe: d[year], 'dateMin': d['Min'], 'date10': d['10%'], 'date30': d['30%'], 'date70': d['70%'], 'date90': d['90%'], 'dateMax': d['Max'], 'dateMedian_91_20': d['Median (\'91-\'20)'], 'dateMedian_POR': d['Median (POR)'], 'dateMedian_Peak_SWE': d['Median Peak SWE'], } ]) }) }) return tall.sort((a,b) => a.calendarDate - b.calendarDate) }32:[{"id":"feac93e07af3c8faef1a1f9d6c42304ea022b34b77bf6c96fcee6d8eeb73e31a1d960a4e4b196ddd045503895dfe530e3895d703925f5525f34d350256af1dae","href":"https://static.observableusercontent.com/files/feac93e07af3c8faef1a1f9d6c42304ea022b34b77bf6c96fcee6d8eeb73e31a1d960a4e4b196ddd045503895dfe530e3895d703925f5525f34d350256af1dae","name":"mt-snow-water-equivalancy@3.json","type":"application/json","lastModified":1649101309398.594,"size":3941342},{"id":"d557d417677f105187808563216b51a1ccc4667ee87e1bcc5faed6ad6ba4d654f034ecd56dbf79c7f2632c83d7c6a5fe49c9752bb3a10668593e79b182fa72b9","href":"https://static.observableusercontent.com/files/d557d417677f105187808563216b51a1ccc4667ee87e1bcc5faed6ad6ba4d654f034ecd56dbf79c7f2632c83d7c6a5fe49c9752bb3a10668593e79b182fa72b9","name":"mt-snow-water-equivalancy@4.json","type":"application/json","lastModified":1649274234279.12,"size":3941341},{"id":"7ec8dafb538d0a65022580867b0fc1c75223a9ddc46d0be019020c824a279b4f23a3ae3ab9effa3f231e68ae91fb12bacbb79233e1008c9ff31cd2384d4cea10","href":"https://static.observableusercontent.com/files/7ec8dafb538d0a65022580867b0fc1c75223a9ddc46d0be019020c824a279b4f23a3ae3ab9effa3f231e68ae91fb12bacbb79233e1008c9ff31cd2384d4cea10","name":"mt-snow-water-equivalancy@5.json","type":"application/json","lastModified":1651157005675.247,"size":3941174}] 2f:{"title":"Montana 2022 snowpack trend","cells":[{"id":0,"value":"# Montana 2022 snowpack trend\n\nData from [USDA NRCS](https://www.nrcs.usda.gov/wps/portal/nrcs/mt/snow/products/water+supply/monthly+conditions+overview/b0b3eb58-1a59-427a-b4cd-c34a63d1200f/). Data fetching script at https://github.com/eidietrich/mt-snowpack.","pinned":false,"hidden":false,"mode":"md"},{"id":272,"value":"md`### Select a Montana snowpack basin\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":20,"value":"viewof selKey = Inputs.select(data.map(d => d.key), {label: \"Basin\"})","pinned":false,"hidden":false,"mode":"ojs"},{"id":487,"value":"makeLegend()","pinned":false,"hidden":false,"mode":"ojs"},{"id":248,"value":"html`

\n\n

${insetMap(selKey)}

\n${swePlot(selBasin)}

\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":418,"value":"{\n const latestMeasure = selBasin.filter(d => d.swe !== null).slice(-1)[0]\n const output = {\n date: latestMeasure.calendarDate,\n swe: latestMeasure.swe,\n perMedian: latestMeasure.swe / latestMeasure.dateMedian_91_20\n }\n return html`${output.swe} inches Snow Water Equivalent as of ${d3.timeFormat('%b %d, %Y')(output.date)} (${d3.format('.0%')(output.perMedian)} of median)`\n return output\n}","pinned":false,"hidden":false,"mode":"ojs"},{"id":505,"value":"### Specific basins","pinned":false,"hidden":false,"mode":"md"},{"id":254,"value":"html`\n

Kootenai basin

\n${swePlot(transform(data.find(d => d.key === 'kootenai').data))}\n\n

Helena Valley basin

\n${swePlot(transform(data.find(d => d.key === 'helena_valley').data))}\n\n

Gallatin basin

\n${swePlot(transform(data.find(d => d.key === 'gallatin').data))}\nData: USDA National Water and Climate Center. Graphics: Eric Dietrich / MTFP\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":13,"value":"data = FileAttachment(\"mt-snow-water-equivalancy@5.json\").json()","pinned":false,"hidden":false,"mode":"ojs"},{"id":33,"value":"swePlot = (data) => Plot.plot({\n width: 600,\n height: 200,\n x: {\n transform: dayOfWaterYear => d3.timeDay.offset(new Date('10/1/01'), dayOfWaterYear-1),\n tickFormat: '%b',\n label: ''\n },\n y: {\n label: 'Snowpack (Snow water equivalent, in.)',\n domain: [0,40]\n },\n stroke: {\n type: 'ordinal',\n },\n marks: [\n Plot.areaY(data.filter(d => d.waterYear === '2021'), {x: \"dayOfWaterYear\", y1: \"dateMin\", y2: \"dateMax\", fill: '#ddd', opacity: 0.5}),\n Plot.line(data, {x: \"dayOfWaterYear\", y: \"swe\", z: 'waterYear', opacity: 0.5, stroke: '#4d96b3', strokeWidth: 0.5}),\n Plot.line(data.filter(d => d.waterYear === '2021'), {x: \"dayOfWaterYear\", y: \"dateMedian_91_20\", strokeWidth: 1}),\n Plot.line(data.filter(d => d.waterYear === '2022'), {x: \"dayOfWaterYear\", y: \"swe\", stroke: '#F85028', strokeWidth: 2}),\n \n // Plot.line(selBasin, {x: \"date\", y: \"date90\"})\n ]\n})","pinned":false,"hidden":false,"mode":"ojs"},{"id":258,"value":"$31","pinned":false,"hidden":false,"mode":"ojs"},{"id":27,"value":"selBasin = transform(data.find(d => d.key === selKey).data)","pinned":false,"hidden":false,"mode":"ojs"},{"id":56,"value":"years = [\"1976\",\"1977\",\"1978\",\"1979\",\"1980\",\"1981\",\"1982\",\"1983\",\"1984\",\"1985\",\"1986\",\"1987\",\"1988\",\"1989\",\"1990\",\"1991\",\"1992\",\"1993\",\"1994\",\"1995\",\"1996\",\"1997\",\"1998\",\"1999\",\"2000\",\"2001\",\"2002\",\"2003\",\"2004\",\"2005\",\"2006\",\"2007\",\"2008\",\"2009\",\"2010\",\"2011\",\"2012\",\"2013\",\"2014\",\"2015\",\"2016\",\"2017\",\"2018\",\"2019\",\"2020\",\"2021\",\"2022\"]","pinned":false,"hidden":false,"mode":"ojs"},{"id":301,"value":"basinShapes = d3.json('https://gist.githubusercontent.com/eidietrich/e28c6482df0a0b2a4f1b99efec946b03/raw/5367cdbbf8f18ff27fb7d7220d865a9001a1abda/montana-snowpack-basins-inset-scale.geojson')","pinned":false,"hidden":false,"mode":"ojs"},{"id":330,"value":"basinShape = key => {\n return {\n ...basinShapes,\n features: basinShapes.features.filter(d => d.properties.basin === key)\n }\n}","pinned":false,"hidden":false,"mode":"ojs"},{"id":304,"value":"import { map, FeatureLayer, PointLayer, joinFlatDataToGeo, tooltipDefaultStyle } from '@eidietrich/geojson-mapping-rig'","pinned":false,"hidden":false,"mode":"ojs"},{"id":307,"value":"import { state } from '@eidietrich/geojson-mapping-rig'","pinned":false,"hidden":false,"mode":"ojs"},{"id":298,"value":"insetMap = (basinKey) => map({\n width: 150,\n height: 75,\n margin: {top: 10, left: 10, right: 10, bottom: 5},\n projection: d3.geoAlbers().rotate([110, 0, 0]),\n layers: [\n new FeatureLayer({\n geodata: state, // geojson\n featureStyle: {\n fill: d => '#EAE3DA',\n stroke: d => 'none',\n }\n }),\n \n\n new FeatureLayer({\n geodata: basinShape(basinKey), // geojson\n featureStyle: {\n stroke: d => '#214a75',\n fill: d => '#214a75',\n fillOpacity: d => 0.8,\n strokeWidth: d => 1,\n }\n }),\n\n ],\n})","pinned":false,"hidden":false,"mode":"ojs"},{"id":427,"value":"makeLegend = () => html`

\n \n 2022 Snowpack\n\n \n Past years\n\n \n Median for date (1991-2020)\n

`","pinned":false,"hidden":false,"mode":"ojs"}],"files":"$W32","stdlib":"1","titling":"auto"}