snowfall_event
(
nullable: true, editable: true, defaultValue: null, description: {"fieldValueType":"","value":"This parameter is meant to be populated if there was a notable recent snowfall immediately prior to collection. Enter the total event snowfall. As of 1/8/2024, this is used as a note, and is not a diagnostic input."}, type: esriFieldTypeDouble, alias: Event Snowfall (inches)
)
snowfall_todate
(
nullable: true, editable: true, defaultValue: null, description: {"fieldValueType":"","value":"Season to-date snowfall is a diagnostic input. This field is not required to at the time of data collection, but should be completed for proper analysis. This represents the sum daily height of snowfall at the location. \n\nLocal records for this value are sufficient. In lieu of local records values can be added in-post, using the NWS record at the nearest climate observation location or MERRA-2 reanalysis for bias-corrected snowfall."}, type: esriFieldTypeDouble, alias: Season Snowfall To-Date (inches)
)
plowshed_id
(
nullable: true, editable: true, defaultValue: null, length: 16, description: {"fieldValueType":"","value":"The ID of the pile's plowshed. This is a sortable attribute calculated using feature overlap."}, type: esriFieldTypeString, alias: Plowshed ID
)
date_time
(
nullable: false, editable: true, defaultValue: null, length: 29, alias: Date & Time of Collection, type: esriFieldTypeDate
)
footprint
(
nullable: false, editable: true, defaultValue: null, description: {"fieldValueType":"","value":"This is a calculated value using Geodetic Area function in Arcade. This is a diagnostic input."}, type: esriFieldTypeDouble, alias: Pile Footprint (sq ft)
)
slope
(
nullable: true, editable: true, defaultValue: null, description: {"fieldValueType":"measurement","value":"An approximate slope (or \"angle of repose\") for the sides of the snow pile. If slope varies based on location, use an approximate average. This value can be estimated using a variety of tools, but will most likely use digital inlinometers built into a smartphone or other device. This is a diagnostic input for pile volume calculation. "}, type: esriFieldTypeInteger, alias: Slope (° from horizontal)
, Range: [0, 90]
)
alpha
(
nullable: true, editable: true, defaultValue: null, description: {"fieldValueType":"","value":"An estimate of snow pile bulk volume at the time of observation divided by total snowfall volume to-date in the plowshed. This is a diagnostic output, and driver for planned storage area criteria."}, type: esriFieldTypeDouble, alias: Retention Coefficient
)
plowshed_area
(
nullable: true, editable: true, defaultValue: null, description: {"fieldValueType":"","value":"This is adopted from the overlapping plowshed, and is an input for calculating retention."}, type: esriFieldTypeDouble, alias: Plowshed Area (sq ft)
)
beta
(
nullable: true, editable: true, defaultValue: null, description: {"fieldValueType":"","value":"The pile footprint on the date of observation divided by the total plowshed area."}, type: esriFieldTypeDouble, alias: Pile Footprint %
)
pile_volume
(
nullable: true, editable: true, defaultValue: null, description: {"fieldValueType":"","value":"The approximate pile volume on the date of observation, based on footprint, slope, and height. As of 202401/08, this value approximates volume using the shape of a square-based frustrum."}, type: esriFieldTypeDouble, alias: Pile Volume (cu ft)
)
date_text
(
nullable: true, editable: true, defaultValue: null, length: 256, description: {"fieldValueType":"","value":"A filtering attribute which copies Observation Date."}, type: esriFieldTypeString, alias: Date as Text
)