DOI: 10.6073/pasta/3e371451888a78199665809c55808817
title: Snow depth data for saddle snowfence, 1992 - ongoing.

description: A snowfence was built in 1993 on the Niwot Ridge Saddle grid to determine the effects of changes in snowpack on a number of variables. The study area was 60m x 125m. Snow depths were measured at each of 147 points within the snowfence experiment area and at 6 control locations outside of but near the snowfence experiment area. Of the 147 points, 84 were located on the leeward (east) side of the snowfence, 56 were located on the windward (west) side of the snowfence, and 7 were located along the snowfence itself. These measurements were made weekly to biweekly. Sampling locations were each given a unique point indentification number in order that these data could be incorporated into the Saddle GIS. The snowfence was oriented in a north/south direction and was 60 m long. Each of the point identification numbers had a coordinate within the experiment area. The first number of the coordinate was the distance in m from the snowfence in an east/west direction, negative numbers being west of the snowfence and positive numbers being east of the fence. The second number in the coordinate was the distance in m from the southern terminus of the snowfence in a northerly direction. Point identification numbers and coordinates for the windward drift were: 200 (-40,0), 201 (-40,10), 202 (-40,20), 203 (-40,30), 204 (-40,40), 205 (-40,50), 206 (-40,60), 207 (-35,0), 208 (-35,10), 209 (-35,20), 210 (-35,30), 211 (-35,40), 212 (-35,50), 213 (-35,60), 214 (-30,0), 215 (-30,10), 216 (-30,20), 217 (-30,30), 218 (-30,40), 219 (-30,50), 220 (-30,60), 221 (-25,0), 222 (-25,10), 223 (-25,20), 224 (-25,30), 225 (-25,40), 226 (-25,50), 227 (-25,60), 228 (-20,0), 229 (-20,10), 230 (-20,20), 231 (-20,30), 232 (-20,40), 233 (-20,50), 234 (-20,60), 235 (-15,0), 236 (-15,10), 237 (-15,20), 238 (-15,30), 239 (-15,40), 240 (-15,50), 241 (-15,60), 242 (-10,0), 243 (-10,10), 244 (-10,20), 245 (-10,30), 246 (-10,40), 247 (-10,50), 248 (-10,60), 249 (-5,0), 250 (-5,10), 251 (-5,20), 252 (-5,30), 253 (-5,40), 254 (-5,50), 255 (-5,60). Point identification numbers and coordinates for the leeward drift were: 256 (5,0), 257 (5,10), 258 (5,20), 259 (5,30), 260 (5,40), 261 (5,50), 262 (5,60), 263 (10,0), 264 (10,10), 265 (10,20), 266 (10,30), 267 (10,40), 268 (10,50), 269 (10,60), 270 (15,0), 271 (15,10), 272 (15,20), 273 (15,30), 274 (15,40), 275 (15,50), 276 (15,60), 278 (20,0), 279 (20,10), 280 (20,20), 281 (20,30), 282 (20,40), 283 (20,50), 284 (20,60), 285 (25,0), 286 (25,10), 287 (25,20), 288 (25,30), 289 (25,40), 290 (25,50), 291 (25,60), 292 (30,0), 293 (30,10), 294 (30,20), 295 (30,30), 296 (30,40), 297 (30,50), 298 (30,60), 299 (35,60), 300 (35,10), 301 (35,20), 302 (35,30), 303 (35,40), 304 (35,50), 305 (35,0), 306 (40,0), 307 (40,10), 308 (40,20), 309 (40,30), 310 (40,40), 311 (40,50), 312 (40,60), 313 (45,0), 314 (45,10), 315 (45,20), 316 (45,30), 317 (45,40), 318 (45,50), 319 (45,60), 320 (50,0), 321 (50,10), 322 (50,20), 323 (50,30), 324 (50,40), 325 (50,50), 326 (50,60), 327 (55,0), 328 (55,10), 329 (55,20), 330 (55,30), 331 (55,40), 332 (55,50), 333 (55,60), 334 (60,0), 335 (60,10), 336 (60,20), 337 (60,30), 338 (60,40), 339 (60,50), 340 (60,60). Point identification numbers and coordinates for the points directly along the fence were: 341 (0,0), 342 (0,10), 343 (0,20), 344 (0,30), 345 (0,40), 346 (0,50), 346 (0,60). Point identification numbers and locations for the control points were: 113 (approximately 10 m south of the -30,0 coordinate) in the Acomastylidetum rossii vegetation association, 114 (approximately 11 m south of the -25,0 coordinate) in the Acomastylidetum rossii vegetation association, 115 (approximately 8 m south of the 55,0 coordinate) in the Kobresietum myosuroidis vegetation association, 116 (approximately 5 m north of the 50,60 coordinate) in the Kobresietum myosuroidis vegetation association, 117 (approximately 3 m north of the -23,60 coordinate) in the Rhodiolo integrifoliae vegetation association, 118 (approximately 5 m north of the -21,60 coordinate) in the Rhodiolo integrifoliae vegetation association. Control points are indicated by a 'C' in column 2. NOTE: This LTER data portal display does not contain important maintenance/log information. Please be sure to view the EML file (a text file that contains XML tags) which is included in the zip archive (click on "Download zip archive") for legacy maintenance/log information pertaining to each dataset. The EML file name will have the following format: knb-lter-nwt.[3 digit dataset number].[version number].xml. Most web browsers can parse the EML so it's easier to read. Scroll down to the "maintenance" tag.