[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"learn-\u002Flearn\u002Fdata-sources\u002Fdrought-monitor":3,"learn-related-data-sources\u002Fdrought-monitor":157},{"id":4,"title":5,"body":6,"category":136,"createdAt":136,"cta":137,"description":140,"extension":141,"icon":142,"industry":136,"keywords":143,"meta":148,"navigation":149,"path":150,"province":136,"relatedPages":151,"section":153,"seo":154,"stem":155,"systems":136,"updatedAt":136,"__hash__":156},"learn\u002Flearn\u002Fdata-sources\u002Fdrought-monitor.md","Canadian Drought Monitor: Current Drought-Severity Polygons",{"type":7,"value":8,"toc":127},"minimark",[9,14,27,31,46,50,57,63,67,88,102,106],[10,11,13],"h2",{"id":12},"what-it-is","What it is",[15,16,17,18,22,23,26],"p",{},"The ",[19,20,21],"strong",{},"Canadian Drought Monitor",", published by Agriculture and Agri-Food Canada, releases drought-severity polygons every month. It classifies conditions on the standard ",[19,24,25],{},"D0 to D4"," scale: D0 abnormally dry, D1 moderate, D2 severe, D3 extreme, and D4 exceptional. Township Canada carries the current month's polygons.",[10,28,30],{"id":29},"what-it-carries","What it carries",[15,32,33,34,37,38,41,42,45],{},"Each polygon carries a ",[19,35,36],{},"severity"," level and label and the month it is valid for. Township Canada intersects it with the quarter section to produce the ",[19,39,40],{},"current drought class"," shown on the report, and a ",[19,43,44],{},"drought modifier"," that nudges the Productivity Score down in proportion to severity (D0 leaves the score unchanged; D4 multiplies it by 0.85).",[10,47,49],{"id":48},"coverage-and-refresh","Coverage and refresh",[15,51,52,53,56],{},"The Drought Monitor is national and refreshes ",[19,54,55],{},"monthly, around the 10th",". Our current load carries the latest published month's polygons, typically spanning the milder D0 to D2 classes across the agricultural Prairies, with more severe classes appearing in dry years.",[58,59,60],"blockquote",{},[15,61,62],{},"Contains information licensed under the Open Government Licence - Canada.\nSource: Agriculture and Agri-Food Canada - Canadian Drought Monitor.",[10,64,66],{"id":65},"how-township-canada-shows-it","How Township Canada shows it",[15,68,69,70,73,74,77,78,81,82,87],{},"Drought powers the ",[19,71,72],{},"Drought"," overlay and the drought card on the ",[19,75,76],{},"Agriculture tab"," of the parcel report, and it is the present-condition ",[19,79,80],{},"modifier"," in the ",[83,84,86],"a",{"href":85},"\u002Flearn\u002Fag\u002Fscore-methodology","Productivity Score",". Two parcels with identical soil can score differently this month if one sits inside a D2 polygon.",[89,90,91],"note",{},[15,92,93,96,97,101],{},[19,94,95],{},"Screenshot to add"," (",[98,99,100],"code",{},"\u002Fimages\u002Flearn\u002Fdata-sources\u002Fdrought-monitor\u002Fdrought-card.png","): the Agriculture tab drought card showing the current class (for example D0 Abnormally Dry) with the valid month.",[10,103,105],{"id":104},"related","Related",[107,108,109,115,121],"ul",{},[110,111,112],"li",{},[83,113,114],{"href":85},"Productivity Score methodology",[110,116,117],{},[83,118,120],{"href":119},"\u002Flearn\u002Fdata-sources\u002Fagrasid-lsrs","AGRASID 4.1 and LSRS",[110,122,123],{},[83,124,126],{"href":125},"\u002Flearn\u002Fdata-sources\u002Fcomposite-quarter-section-layer","Composite quarter-section layer",{"title":128,"searchDepth":129,"depth":129,"links":130},"",2,[131,132,133,134,135],{"id":12,"depth":129,"text":13},{"id":29,"depth":129,"text":30},{"id":48,"depth":129,"text":49},{"id":65,"depth":129,"text":66},{"id":104,"depth":129,"text":105},null,{"label":138,"href":139},"Check drought on a parcel report","\u002Fapp\u002Fsearch","The Canadian Drought Monitor publishes monthly drought-severity polygons. Township Canada uses the current month to modify the Productivity Score and flag drought on every parcel.","md","i-lucide-sun",[144,145,146,147],"canadian drought monitor","drought","D0 D1 D2 D3 D4","moisture deficit",{},true,"\u002Flearn\u002Fdata-sources\u002Fdrought-monitor",[119,152,125],"\u002Flearn\u002Fdata-sources\u002Faafc-crop-inventory","data-sources",{"title":5,"description":140},"learn\u002Fdata-sources\u002Fdrought-monitor","YKRSfO2TyYLOzNMtEfhAM0NDDl9ui1DpCWSnBrYgh4Y",[158,275,409],{"id":159,"title":160,"body":161,"category":136,"createdAt":136,"cta":262,"description":264,"extension":141,"icon":265,"industry":136,"keywords":266,"meta":270,"navigation":149,"path":152,"province":136,"relatedPages":271,"section":153,"seo":272,"stem":273,"systems":136,"updatedAt":136,"__hash__":274},"learn\u002Flearn\u002Fdata-sources\u002Faafc-crop-inventory.md","AAFC Annual Crop Inventory: Five-Year Crop History",{"type":7,"value":162,"toc":255},[163,165,175,177,192,194,205,210,212,225,235,237],[10,164,13],{"id":12},[15,166,17,167,170,171,174],{},[19,168,169],{},"AAFC Annual Crop Inventory (ACI)"," is Agriculture and Agri-Food Canada's satellite-derived crop classification, published every year as a 30-metre raster covering the prior growing season. Township Canada samples it per quarter section and builds a ",[19,172,173],{},"five-year rotation"," from the most recent classifications.",[10,176,30],{"id":29},[15,178,179,180,183,184,187,188,191],{},"For each quarter section we derive the ",[19,181,182],{},"dominant crop",", the ",[19,185,186],{},"rotation pattern"," across the last five years, and a ",[19,189,190],{},"Shannon crop-diversity index"," that rewards a varied rotation over a persistent monoculture. The same colour table AAFC publishes is used on our map, so the visual matches what producers already know from the AAFC viewer.",[10,193,49],{"id":48},[15,195,196,197,200,201,204],{},"We carry crop history on ",[19,198,199],{},"more than 1.7 million Prairie quarter sections"," across Alberta, Saskatchewan, and Manitoba, refreshed ",[19,202,203],{},"annually in January"," for the prior season.",[58,206,207],{},[15,208,209],{},"Contains information licensed under the Open Government Licence - Canada.\nSource: Agriculture and Agri-Food Canada - Annual Crop Inventory.",[10,211,66],{"id":65},[15,213,214,215,218,219,221,222,224],{},"The ACI powers the ",[19,216,217],{},"AAFC Crops"," map layer (Agriculture Bundle) and the crop-history strip on the ",[19,220,76],{}," of the parcel report. The diversity index is also one of the four inputs to the ",[83,223,86],{"href":85},".",[89,226,227],{},[15,228,229,96,231,234],{},[19,230,95],{},[98,232,233],{},"\u002Fimages\u002Flearn\u002Fdata-sources\u002Faafc-crop-inventory\u002Fcrop-history-card.png","): the Agriculture tab crop-history strip showing a five-year rotation (for example peas, spring wheat, lentils) with the dominant crop and diversity index.",[10,236,105],{"id":104},[107,238,239,245,251],{},[110,240,241],{},[83,242,244],{"href":243},"\u002Flearn\u002Fhow-to\u002Faafc-crop-history-quarter-section","AAFC crop history per quarter section",[110,246,247],{},[83,248,250],{"href":249},"\u002Flearn\u002Fdata-sources\u002Faafc-land-use","AAFC Land Use v5",[110,252,253],{},[83,254,120],{"href":119},{"title":128,"searchDepth":129,"depth":129,"links":256},[257,258,259,260,261],{"id":12,"depth":129,"text":13},{"id":29,"depth":129,"text":30},{"id":48,"depth":129,"text":49},{"id":65,"depth":129,"text":66},{"id":104,"depth":129,"text":105},{"label":263,"href":139},"See crop history on a parcel report","The AAFC Annual Crop Inventory is the satellite-derived crop map of Canada. Township Canada turns it into a five-year rotation, dominant crop, and diversity index per quarter section.","i-lucide-wheat",[267,268,269,182],"AAFC crop inventory","crop rotation","crop diversity",{},[249,119,243],{"title":160,"description":264},"learn\u002Fdata-sources\u002Faafc-crop-inventory","6ipUFARNBLUbJiqgBo0jLpdnW-18TRUeDv5aVhUzF_g",{"id":276,"title":277,"body":278,"category":136,"createdAt":136,"cta":395,"description":397,"extension":141,"icon":398,"industry":136,"keywords":399,"meta":404,"navigation":149,"path":119,"province":136,"relatedPages":405,"section":153,"seo":406,"stem":407,"systems":136,"updatedAt":136,"__hash__":408},"learn\u002Flearn\u002Fdata-sources\u002Fagrasid-lsrs.md","AGRASID 4.1 and LSRS: Alberta Soil and the Productivity Score",{"type":7,"value":279,"toc":388},[280,282,296,298,313,315,331,336,338,350,360,370,372],[10,281,13],{"id":12},[15,283,284,287,288,291,292,295],{},[19,285,286],{},"AGRASID 4.1"," (the Agricultural Region of Alberta Soil Inventory Database) is the province's authoritative soil-polygon dataset. It is also the source of the ",[19,289,290],{},"Land Suitability Rating System (LSRS)"," productivity score, the federal-provincial standard for rating dryland spring-cereal cropland on a ",[19,293,294],{},"0-100"," scale. In Alberta, Township Canada reads the LSRS score directly from AGRASID.",[10,297,30],{"id":29},[15,299,300,301,304,305,308,309,312],{},"AGRASID contributes the soil ",[19,302,303],{},"subgroup, drainage, parent material, slope, and salinity"," for each polygon. LSRS contributes the ",[19,306,307],{},"productivity score"," and the single ",[19,310,311],{},"limiter"," capping it - climate, moisture, soil, water, continuous cropping, or pattern. The score is reported per quarter section with its limiter.",[10,314,49],{"id":48},[15,316,317,318,321,322,325,326,330],{},"We carry an LSRS productivity score on ",[19,319,320],{},"more than 380,000 Alberta quarter sections",", refreshed ",[19,323,324],{},"annually each June",". Outside Alberta, the ",[83,327,329],{"href":328},"\u002Flearn\u002Fdata-sources\u002Fsoil-landscapes-canada","Soil Landscapes of Canada"," fallback supplies the soil context.",[58,332,333],{},[15,334,335],{},"Source: AGRASID 4.1 (Alberta Agriculture and Irrigation) under Open Government Licence - Alberta.",[10,337,66],{"id":65},[15,339,340,341,344,345,347,348,224],{},"AGRASID and LSRS power the ",[19,342,343],{},"Ag Summary"," map layer (Agriculture Bundle), themed by productivity class, and the soil and productivity cards on the ",[19,346,76],{}," of the parcel report. The LSRS score is the soil component (50% weight) of the composite ",[83,349,86],{"href":85},[89,351,352],{},[15,353,354,96,356,359],{},[19,355,95],{},[98,357,358],{},"\u002Fimages\u002Flearn\u002Fdata-sources\u002Fagrasid-lsrs\u002Flsrs-map.png","): the Ag Summary layer themed by LSRS class, ramped from class 1 (excellent) to class 7, over an Alberta township.",[89,361,362],{},[15,363,364,96,366,369],{},[19,365,95],{},[98,367,368],{},"\u002Fimages\u002Flearn\u002Fdata-sources\u002Fagrasid-lsrs\u002Freport-soil-card.png","): the Agriculture tab showing the productivity score, soil subgroup, drainage, and the limiter.",[10,371,105],{"id":104},[107,373,374,380,384],{},[110,375,376],{},[83,377,379],{"href":378},"\u002Flearn\u002Fhow-to\u002Flsrs-soil-productivity-score","The LSRS productivity score explained",[110,381,382],{},[83,383,329],{"href":328},[110,385,386],{},[83,387,114],{"href":85},{"title":128,"searchDepth":129,"depth":129,"links":389},[390,391,392,393,394],{"id":12,"depth":129,"text":13},{"id":29,"depth":129,"text":30},{"id":48,"depth":129,"text":49},{"id":65,"depth":129,"text":66},{"id":104,"depth":129,"text":105},{"label":396,"href":139},"Pull an Alberta parcel report","AGRASID 4.1 is Alberta's soil information database and the source of the LSRS productivity score. Township Canada carries soil detail and the 0-100 score per quarter section.","i-lucide-layers",[400,401,402,403],"AGRASID","LSRS","soil productivity","land suitability rating system",{},[328,152,378],{"title":277,"description":397},"learn\u002Fdata-sources\u002Fagrasid-lsrs","Cl4jQHG7-tjIjXXxoTc7tGKs8OKwymnHmqX_NSO7Exg",{"id":410,"title":411,"body":412,"category":136,"createdAt":136,"cta":496,"description":498,"extension":141,"icon":398,"industry":136,"keywords":499,"meta":504,"navigation":149,"path":125,"province":136,"relatedPages":505,"section":153,"seo":506,"stem":507,"systems":136,"updatedAt":136,"__hash__":508},"learn\u002Flearn\u002Fdata-sources\u002Fcomposite-quarter-section-layer.md","Composite Quarter-Section Layer: Every Ag Dataset, Pre-Joined",{"type":7,"value":413,"toc":489},[414,416,426,428,434,436,447,452,454,460,470,472],[10,415,13],{"id":12},[15,417,17,418,421,422,425],{},[19,419,420],{},"composite quarter-section layer"," is the one we build ourselves. Rather than ask the map to join six datasets on the fly, Township Canada ",[19,423,424],{},"pre-joins"," crop history, land use, soil, capability, productivity, and drought into a single row per quarter section. One fetch returns everything, so switching what the map is themed by is instant.",[10,427,30],{"id":29},[15,429,430,431,433],{},"One row per quarter section, carrying the dominant crop and rotation, land-use class, soil order and subgroup, CLI class, the LSRS and composite productivity scores, and the current drought class. It is the same shape that powers both the map and the ",[19,432,76],{}," of the parcel report.",[10,435,49],{"id":48},[15,437,438,439,442,443,446],{},"The composite covers ",[19,440,441],{},"three million quarter sections"," across Alberta, Saskatchewan, and Manitoba - the full Prairie Dominion Land Survey grid. It is rebuilt ",[19,444,445],{},"monthly"," as the underlying sources refresh, and shipped as a PMTiles archive for fast client-side rendering.",[58,448,449],{},[15,450,451],{},"Source: Township Canada, derived from AAFC, AGRASID, and the Canadian Drought Monitor.",[10,453,66],{"id":65},[15,455,456,457,459],{},"The composite is what makes the ",[19,458,343],{}," map layer fast: the \"View\" switcher repaints three million quarter sections by productivity, dominant crop, or drought without a new request. The same per-quarter row backs the report, so the map and the report always agree.",[89,461,462],{},[15,463,464,96,466,469],{},[19,465,95],{},[98,467,468],{},"\u002Fimages\u002Flearn\u002Fdata-sources\u002Fcomposite-quarter-section-layer\u002Ftheme-switch.png","): the Ag Summary layer with the \"View\" switcher, showing the grid repainting from productivity to dominant crop across a township.",[10,471,105],{"id":104},[107,473,474,478,483],{},[110,475,476],{},[83,477,120],{"href":119},[110,479,480],{},[83,481,482],{"href":152},"AAFC Annual Crop Inventory",[110,484,485],{},[83,486,488],{"href":487},"\u002Fguides\u002Fmap-layers","Map Layers guide",{"title":128,"searchDepth":129,"depth":129,"links":490},[491,492,493,494,495],{"id":12,"depth":129,"text":13},{"id":29,"depth":129,"text":30},{"id":48,"depth":129,"text":49},{"id":65,"depth":129,"text":66},{"id":104,"depth":129,"text":105},{"label":497,"href":139},"Open the map","Township Canada pre-joins every agriculture dataset to one row per quarter section, so a single PMTiles fetch powers instant theme-switching on the map.",[500,501,502,503],"composite layer","quarter section","PMTiles","pre-join",{},[119,152,150],{"title":411,"description":498},"learn\u002Fdata-sources\u002Fcomposite-quarter-section-layer","zBFgZ_K5_v7CtIvPmRcql3WrEias423fW75WPZSwkZU"]