(sort order, if any, applied)
Table: commStatus Field: commLevel | ||
descriptions from standards document, alliance may need revision. | ||
Value: | Description: | |
class | the first level in the NVC hierarchy; based on the structure of the vegetation and determined by the relative percentage of cover and the height of the dominant, life forms (Grossman et al. 1998). | |
subclass | ||
group | the level in the classification hierarchy below subclass based on leaf characters and identified and named in conjunction with broadly defined macroclimatic types to provide a structural-geographic orientation (Grossman et al. 1998). | |
subgroup | ||
formation | a level in the NVC based on physiognomic grouping of vegetation units with broadly defined environmental and additional physiognomic factors in common. (FGDC 1997). Grossman et al. (1998) clarified this definition as “a level in the classification hierarchy below subgroup (see Figure 1) which represents vegetation types that share a definite physiognomy or structure within broadly defined environmental factors, relative landscape positions, or hydrologic regimes.” Both of these definitions derive from Whittaker 1962: a "community type defined by dominance of a given growth form in the uppermost stratum of the community, or by a combination of dominant growth forms." | |
alliance | A grouping of associations with a characteristic physiognomy and habitat and which share one or more diagnostic species typically found in the uppermost or dominant stratum of the vegetation. (This definition includes both floristic and physiognomic criteria, in keeping with the integrated physiognomic-floristic hierarchy of the NVC. It is similar to the FGDC 1997 definition: a physiognomically uniform group of Associations sharing one or more diagnostic (dominant, differential, indicator, or character) species, which, as a rule, are found in the uppermost stratum of the vegetation.) | |
association | A recurring plant community with a characteristic range in species composition, specific diagnostic species, and a defined range in habitat conditions and physiognomy or structure. | |
phase | ||
other | ||
Table: commCorrelation Field: commConvergence | ||
MTL descriptions | ||
Value: | Description: | |
equal | the two concepts are exactly the same | |
greater than | the concept referenced in table:Status fully contains the concepts referenced in table:Concept, but also includes additional entities. | |
less than | the concept referenced in table:Status is fully included in the concept referenced in table:Concept, but the latter concept contains additional entities. | |
not equal | the two concepts, are not exactly the same. This leaves the possibilties that the concepts are greater than, less than, overlapping, or disjunct. | |
overlapping | the two concepts contain at least one common individual, and each concept also contains at least one individual that the other does not contain. Neither concept is fully contained in the other. | |
disjunct | the two concepts in question contain no common individuals. | |
undetermined | The party responsible for this correlation has not made a determination as to the correlation between the two entities referenced in table:Status and table:Concept. Some a correlation is likely to the degree that it was reasonable to create this record. For example, the names of the two statuses are the same, but the reference is different. Or, names have changed and a correlation is possible, but has not been thoroughly investigated (i.e. the name change could have also incurred a concept change). | |
Table: commInterpretation Field: classConfidence | ||
MTL descriptions | ||
Value: | Description: | |
High | The party making the community interpretation has a high confidence in the precision of this interpretation. That is, the person feels confident that the community and fit described would be agreed upon easily by others. A person can have high confidence that a plot has a fit of "absolutely wrong" for a particular community. | |
Medium | The party making the community interpretation has a medium amount of confidence in the precision of this interpretation. That is, the person is unsure of whether or not the community and fit described would be agreed upon easily by others. | |
Low | The party making the community interpretation has a low confidence in the precision of this interpretation. That is, the person doubts that the community and fit described would be agreed upon easily by others. | |
Table: commInterpretation Field: classFit | ||
descriptions are from : http://www.gap.uidaho.edu/handbook/LandCoverAssessment/default.htm | ||
Value: | Description: | |
Absolutely wrong | This answer is absolutely unacceptable. Very wrong. | |
Understandable but wrong | Not a good answer. There is something about the site that makes the answer understandable, but there is clearly a better answer. This answer would pose a problem for users. Not right | |
Reasonable or acceptable answer | Maybe not the best possible answer but it is acceptable; this answer does not pose a problem to the user. Right. | |
Good answer | Would be happy to find this answer given on a map. Very right. | |
Absolutely right | No doubt about the match. Perfect. | |
Table: commStatus Field: commConceptStatus | ||
lack descriptions | ||
Value: | Description: | |
accepted | ||
not accepted | ||
undetermined | ||
Table: commUsage Field: classSystem | ||
Value: | Description: | |
Scientific | ||
Scientific translated | ||
Code | ||
English Common | ||
Spanish Common | ||
French Common | ||
Other | ||
Table: commUsage Field: commNameStatus | ||
Value: | Description: | |
standard | ||
not standard | ||
undetermined | ||
Table: disturbanceObs Field: disturbanceIntensity | ||
Value: | Description: | |
High | ||
Medium | ||
Low | ||
None | No disturbance of this type was observed on the plot. This may be a useful observation where certain types of disturbance are expected, but no signs of such disturbance were found. | |
Table: disturbanceObs Field: disturbanceType | ||
There was some conversation about possibly adding "bark beetle" and/or "adelgid' to this list. Not yet added. Also, more general cateigores, such as "fire", "timber harvest, unknown", might be helpful for migration of legacy data. | ||
Value: | Description: | |
Cryoturbation | ||
Cultivation | ||
Erosion | ||
Fire suppression | ||
Fire, canopy | ||
Fire, ground | ||
Floods | ||
Grazing, domestic stock | ||
Grazing, native ungulates | ||
Herbicide or chemical | ||
Invertebrate | ||
Herbivory, vertebrates | ||
Hydrologic alteration | ||
Ice | ||
Mowing | ||
Other disturbances | ||
Plant disease | ||
Roads and vehicular traffic | ||
Salt spray | ||
Tides | ||
Timber harvest, clearcut | ||
Timber harvest, selective | ||
Trampling and trails | ||
Wind | ||
Table: namedPlace Field: placeName | ||
this is not a closed list! | ||
Value: | Description: | |
Table: namedPlace Field: placeSystem | ||
not sure that this is the desired format for Omernik and Bailey's Ecoregion value | ||
Value: | Description: | |
region|state|province | region or state or province | |
county | county, canton, municipality, township, or parrish | |
area|country|territory | area, country, or territory | |
continent | ||
quadrangle | ||
HUC Code | ||
TNC Conservation Region | ||
Omernik and Bailey Ecoregion | ||
US EPA Ecoregion | ||
Ecoregion | A non-standard or generic ecoregion that is not specifically menioned in this list. | |
Geographic Name | User named places | |
Table: note Field: noteType | ||
aren't these handled by ROLES?? Perhaps this field is redundant. These values do not describe the type of note, but rather the person making the note, which is a role. Note types might be useful if they were values like "implausible value, anomoly flag, unclear explanation, revision in progress, etc." (?) FYI:roles (table:aux_role): Author ; Contact ; PI ; Data Manager ; Classifier ; Plot author ; Co-PI ; Computer (automated) ; Consultant ; Field assistant ; Guide ; Land owner ; Not specified ; Not specified/Unknown ; Passive observer ; Plot contributor ; Publication author ; Research advisor ; System manager ; Taxonomist | ||
Value: | Description: | |
Database Management | =System Manager? | |
Database User | =Passive observer? | |
Internal | (This one is a real noteType) | |
Observation Author | =Author | |
Table: observation Field: bryophyteQuality | ||
Value: | Description: | |
Highest | ||
High | ||
High but incomplete | ||
Moderate | ||
Moderate but incomplete | ||
Low | ||
Very incomplete | ||
Not examined | ||
Table: observation Field: coverDispersion | ||
MTL descr - using "subplot" notation as opposed to "subsample" notation, which can infer something different from subplots, which is what we're after here, I believe. | ||
Value: | Description: | |
Entire | The plot was not subdivided into non-connected subplots. Contiguous. | |
subplot-regular | Subplots are dispersed in some regular pattern in a stand. | |
subplot-random | Subplots are dispersed randomly in a stand. | |
subplot-nested | Suplots are nested within one another | |
Table: observation Field: dateAccuracy | ||
Would be want to add One week as a value - fairly large jump from exact to one month? (MTL) | ||
Value: | Description: | |
Exact | The exact date of the observation - within one day. | |
One month | Within one month of the observation. | |
Three months | ||
One year | ||
Three years | ||
Ten years | ||
Greater than ten years | ||
Table: observation Field: dominantStratum | ||
Value: | Description: | |
Tree | ||
Shrub | ||
Herb | ||
Nonvascular | ||
Floating | ||
Submerged | ||
Table: observation Field: effortLevel | ||
Value: | Description: | |
Very thorough | ||
Accurate | ||
Hurried | ||
Table: observation Field: floristicQuality | ||
Value: | Description: | |
Highest | ||
High | ||
High but incomplete | ||
Moderate | ||
Moderate but incomplete | ||
Low | ||
Table: observation Field: growthform1Type | ||
Don F-L working on this one | ||
Value: | Description: | |
Needle-leaved tree | ||
Broad-leaved deciduous tree | ||
Broad-leaved evergreen tree | ||
Thorn tree | ||
Evergreen sclerophyllous tree | ||
Succulent tree | ||
Palm tree | ||
Tree fern | ||
Bamboo | ||
Needle-leaved shrub | ||
Broad-leaved deciduous shrub | ||
Broad-leaved evergreen shrub | ||
Thorn shrub | ||
Evergreen sclerophyllous shrub | ||
Palm shrub | ||
Dwarf-shrub | ||
Semi-shrub | ||
Succulent shrub | ||
Forb | ||
Fern | ||
Graminoid | ||
Succulent forb | ||
Aquatic herb | ||
Bryophyte | ||
Lichen | ||
Alga | ||
Epiphyte | ||
Vine/Liana (woody climbers or vines) | ||
Table: observation Field: growthform2Type | ||
Value: | Description: | |
Needle-leaved tree | ||
Broad-leaved deciduous tree | ||
Broad-leaved evergreen tree | ||
Thorn tree | ||
Evergreen sclerophyllous tree | ||
Succulent tree | ||
Palm tree | ||
Tree fern | ||
Bamboo | ||
Needle-leaved shrub | ||
Broad-leaved deciduous shrub | ||
Broad-leaved evergreen shrub | ||
Thorn shrub | ||
Evergreen sclerophyllous shrub | ||
Palm shrub | ||
Dwarf-shrub | ||
Semi-shrub | ||
Succulent shrub | ||
Forb | ||
Fern | ||
Graminoid | ||
Succulent forb | ||
Aquatic herb | ||
Bryophyte | ||
Lichen | ||
Alga | ||
Epiphyte | ||
Vine/Liana (woody climbers or vines) | ||
Table: observation Field: growthform3Type | ||
Value: | Description: | |
Needle-leaved tree | ||
Broad-leaved deciduous tree | ||
Broad-leaved evergreen tree | ||
Thorn tree | ||
Evergreen sclerophyllous tree | ||
Succulent tree | ||
Palm tree | ||
Tree fern | ||
Bamboo | ||
Needle-leaved shrub | ||
Broad-leaved deciduous shrub | ||
Broad-leaved evergreen shrub | ||
Thorn shrub | ||
Evergreen sclerophyllous shrub | ||
Palm shrub | ||
Dwarf-shrub | ||
Semi-shrub | ||
Succulent shrub | ||
Forb | ||
Fern | ||
Graminoid | ||
Succulent forb | ||
Aquatic herb | ||
Bryophyte | ||
Lichen | ||
Alga | ||
Epiphyte | ||
Vine/Liana (woody climbers or vines) | ||
Table: observation Field: homogeneity | ||
Value: | Description: | |
homogeneous | ||
compositional trend across plot | ||
conspicuous inclusions | ||
irregular or pattern mosaic | ||
Table: observation Field: hydrologicRegime | ||
Value: | Description: | |
Semipermanently flooded | ||
Seasonally flooded | ||
Saturated | ||
Seasonally saturated | ||
Temporarily flooded | ||
Intermittently flooded | ||
Permanently flooded | ||
Permanently flooded - tidal | ||
Tidally flooded | ||
Wind-tidally flooded | ||
Irregularly flooded | ||
Irregularly exposed | ||
Upland | ||
Unknown | ||
Table: observation Field: lichenQuality | ||
Value: | Description: | |
Highest | ||
High | ||
High but incomplete | ||
Moderate | ||
Moderate but incomplete | ||
Low | ||
Very incomplete | ||
Not examined | ||
Table: observation Field: phenologicAspect | ||
Value: | Description: | |
Typical growing season | ||
vernal | ||
early wet season | ||
aestival | ||
wet season | ||
autumnal | ||
late wet season | ||
winter | ||
dry season | ||
irregular ephemeral phase | ||
Table: observation Field: plotQuality | ||
This field has been deleted! | ||
Value: | Description: | |
--- | ||
--- | ||
--- | ||
Table: observation Field: plotValidationLevel | ||
deleted this field, as it is a computer generated field. Should be minimally hidden from the user as an implementation field. | ||
Value: | Description: | |
(1) sufficient for determining type occurrence | ||
(2) sufficient for inclusion in a classification revision | ||
(3) fully compliant with recommendations | ||
Table: observation Field: representativeness | ||
this is no longer a list, but is just a text field where the user can write whatever they want | ||
Value: | Description: | |
Vegetation typical of similar sites in area | ||
Vegetation differs from similar sites in area owing to environmental setting | ||
Vegetation differences from similar sites in area owing to chance dispersal to insular habitats. | ||
Vegetation differences form similar sites in area owing to environmental heterogeneity | ||
Table: observation Field: soilDrainage | ||
Value: | Description: | |
Rapidly drained | ||
Well drained | ||
Moderately well drained | ||
Somewhat poorly drained | ||
Poorly drained | ||
Very poorly drained | ||
Table: observation Field: soilMoistureRegime | ||
Value: | Description: | |
Very xeric | ||
Xeric | ||
Subxeric | ||
Submesic | ||
Mesic | ||
Subhygric | ||
Hygric | ||
Subhydric | ||
Hydric | ||
Table: observation Field: soilTaxonSrc | ||
Value: | Description: | |
Field observation | ||
USDA county soil survey | ||
Other soil map | ||
Table: observation Field: standMaturity | ||
Value: | Description: | |
Young, regenerative | ||
Even-age, aggrading | ||
Mature, even-age | ||
Transition, breakup | ||
Oldgrowth, all-age | ||
Uneven-age | Ages of individuals are uneven so that this community does not fit neatly into the succession model. | |
Table: observation Field: stemSampleMethod | ||
Value: | Description: | |
Full census | ||
Point quarter | ||
Random pairs | ||
Bitterlich | ||
Other | ||
Subsample census | ||
Table: observation Field: waterSalinity | ||
Value: | Description: | |
Saltwater | greater than 30 ppt | |
Brackish | 0.5 to 30 ppt | |
Freshwater | less than 0.5 ppt | |
Table: plantConcept Field: plantLevel | ||
Value: | Description: | |
Kingdom | ||
Subkingdom | ||
Superdivision | ||
Division | ||
Class | ||
Subclass | ||
Order | ||
Suborder | ||
Family | ||
Subfamily | ||
Tribe | ||
Subtribe | ||
Genus | ||
Subgenus | ||
Section | ||
Species Aggregate | ||
Species | ||
Subspecies | ||
Variety | ||
Cultivar/Forma | ||
Table: plantCorrelation Field: plantConvergence | ||
Value: | Description: | |
equal | ||
greater than | ||
less than | ||
not equal | ||
overlapping | ||
disjunct | ||
undetermined | ||
Table: plantStatus Field: plantConceptStatus | ||
Value: | Description: | |
accepted | ||
not accepted | ||
undetermined | ||
Table: plantUsage Field: classSystem | ||
Value: | Description: | |
Scientific | ||
Scientific without authors | ||
Code | ||
English Common | ||
Spanish Common | ||
French Common | ||
Other | ||
Table: plantUsage Field: plantNameStatus | ||
Value: | Description: | |
standard | ||
not standard | ||
undetermined | ||
Table: plot Field: confidentialityStatus | ||
Value: | Description: | |
0 | Public | |
1 | 1 km radius | |
2 | 10 km radius | |
3 | 100 km radius | |
4 | Location embargo | |
5 | Public embargo on data | |
6 | Full embargo on data | |
Table: plot Field: geology | ||
Dave Roberts working on this list | ||
Value: | Description: | |
Aeolian Deposits: Aeolian sand flats | ||
Aeolian Deposits: Cover sands | ||
Aeolian Deposits: Dunes | ||
Aeolian Deposits: Loess deposits | ||
Flat (n/a) | ||
Glacial Deposits: Bedrock and till | ||
Glacial Deposits: Deltaic deposits | ||
Glacial Deposits: Glacial-fluvial deposits | ||
Glacial Deposits: Lacustrine and fluvial deposits | ||
Glacial Deposits: Marine deposits | ||
Glacial Deposits: Moraine | ||
Glacial Deposits: Till | ||
Glacial Deposits: Undifferentiated glacial deposit | ||
Igneous Rocks: Dioritic | ||
Igneous Rocks: Gabbroic | ||
Igneous Rocks: Granitic | ||
Metamorphic Rocks: Gneiss | ||
Metamorphic Rocks: Marble | ||
Metamorphic Rocks: Schist | ||
Metamorphic Rocks: Serpentine | ||
Metamorphic Rocks: Slate and Phyllite | ||
Organic Deposits: Marsh: regularly flooded by lake or river | ||
Organic Deposits: Muck | ||
Organic Deposits: Peat | ||
Sedimentary Rocks: Conglomerates and Breccias | ||
Sedimentary Rocks: Gypsum | ||
Sedimentary Rocks: Limestone and Dolomite | ||
Sedimentary Rocks: Marl | ||
Sedimentary Rocks: Sandstone | ||
Sedimentary Rocks: Shale | ||
Sedimentary Rocks: Siltstone | ||
Slope & Modified Deposits: Colluvial | ||
Slope & Modified Deposits: Solifluction, landslide | ||
Slope & Modified Deposits: Talus and scree slopes | ||
Variable | ||
Table: plot Field: landform | ||
changed to an open list. There were several values that we thought about adding in SBA- Dave Roberts should be queried as to what he'd like to add. For more values (as if that were helpful), see http://soils.usda.gov/procedures/handbook/content/629ex1.htm | ||
Value: | Description: | |
alluvial fan | ||
alluvial flat | ||
alluvial terrace | ||
backshore terrace | ||
backwater | ||
badlands | ||
bald | ||
bank | ||
bar | ||
barrier beach | ||
barrier flat | ||
barrier island(s) | ||
barrier reef | ||
basin | ||
basin floor | ||
bay | ||
bayou | ||
beach | ||
beach ridge | ||
bench | ||
blowout | ||
bottomlands | ||
butte | ||
caldera | ||
canyon | ||
carolina bay | ||
channel | ||
chenier | ||
chenier plain | ||
cirque | ||
cirque floor | ||
cirque headwall | ||
cliff | ||
coast | ||
coastal plain | ||
col | ||
collapse sinkhole | ||
colluvial shoulder | ||
colluvial slope | ||
cove | ||
cuesta | ||
debris slide | ||
delta | ||
delta plain | ||
depositional levee | ||
depositional stream terrace | ||
depression | ||
desert pavement | ||
dike | ||
doline | ||
dome | ||
drainage | ||
drainage channel (undifferentiated) | ||
draw | ||
drumlin | ||
dune (undifferentiated) | ||
dune field | ||
earth flow | ||
earth hummock | ||
eroded bench | ||
eroding stream channel system | ||
erosional stream terrace | ||
escarpment | ||
esker | ||
estuary | ||
exogenous dome | ||
fan piedmont | ||
fault scarp | ||
fault terrace | ||
fissure | ||
fissure vent | ||
flood plain | ||
fluvial | ||
foothills | ||
foredune | ||
frost creep slope | ||
frost mound | ||
frost scar | ||
gap | ||
glaciated uplands | ||
glacier | ||
gorge | ||
graben | ||
ground moraine | ||
gulch | ||
hanging valley | ||
headland | ||
highland | ||
hills | ||
hillslope bedrock outcrop | ||
hogback | ||
hoodoo | ||
hummock | ||
inlet | ||
inselberg | ||
interdune flat | ||
interfluve | ||
island | ||
kame | ||
kame moraine | ||
kame terrace | ||
karst | ||
karst tower | ||
karst window | ||
kegel karst | ||
kettle | ||
kettled outwash plain | ||
knob | ||
knoll | ||
lagoon | ||
lake | ||
lake bed | ||
lake plain | ||
lake terrace | ||
lateral moraine | ||
lateral scarp (undifferentiated) | ||
lava flow (undifferentiated) | ||
ledge | ||
levee | ||
loess deposit (undifferentiated) | ||
longshore bar | ||
lowland | ||
marine terrace (undifferentiated) | ||
meander belt | ||
meander scar | ||
mesa | ||
mid slope | ||
mima mound | ||
monadnock | ||
moraine (undifferentiated) | ||
mound | ||
mountain valley | ||
mountain(s) | ||
mountain-valley fan | ||
mud flat | ||
noseslope | ||
outwash fan | ||
outwash plain | ||
outwash terrace | ||
oxbow | ||
patterned ground (undifferentiated) | ||
peat dome | ||
periglacial boulderfield | ||
piedmont | ||
pimple mounds | ||
pingo | ||
pinnacle | ||
plain | ||
plateau | ||
playa | ||
polygon (high-centered) | ||
polygon (low-centered) | ||
pothole | ||
raised beach | ||
raised estuary | ||
raised mudflat | ||
raised tidal flat | ||
ravine | ||
relict coastline | ||
ridge | ||
ridge and valley | ||
ridgetop bedrock outcrop | ||
rift valley | ||
rim | ||
riverbed | ||
rock fall avalanche | ||
saddle | ||
sag pond | ||
sandhills | ||
scarp | ||
scarp slope | ||
scour | ||
scoured basin | ||
sea cliff | ||
seep | ||
shoal | ||
shoreline | ||
sinkhole (undifferentiated) | ||
slide | ||
slope | ||
slough | ||
slump and topple prone slope | ||
slump pond | ||
soil creep slope | ||
solution sinkhole | ||
spit | ||
splay | ||
stone circle | ||
stone stripe | ||
stream terrace (undifferentiated) | ||
streambed | ||
subjacent karst collapse sinkhole | ||
subsidence sinkhole | ||
swale | ||
talus | ||
tarn | ||
tidal flat | ||
tidal gut | ||
till plain | ||
toe slope | ||
toe zone (undifferentiated) | ||
transverse dune | ||
trench | ||
trough | ||
valley | ||
valley floor | ||
wave-built terrace | ||
wave-cut platform | ||
Table: plot Field: placementMethod | ||
Value: | Description: | |
Regular | ||
Random | ||
Stratified random | ||
Transect component | ||
Representative | ||
Capture specific feature | ||
Table: plot Field: shape | ||
Value: | Description: | |
Rectangular | ||
Square | ||
Circle | ||
Transect/Strip | ||
Plotless | ||
Diffuse | ||
Other | ||
Table: plot Field: standSize | ||
Value: | Description: | |
Very Extensive | greater than 1000x plot size | |
Extensive | greater than 100x plot size | |
Large | 10-100x plot size | |
Small | 3-10x plot size | |
Very small | 1-3x plot size | |
Table: plot Field: topoPosition | ||
Value: | Description: | |
Interfluve | crest, summit, ridge | |
High slope | shoulder slope, upper slope, convex creep slope | |
High level | mesa, high flat | |
Midslope | transportational midslope, middle slope | |
Backslope | dipslope | |
Step in slope | ledge, terracette | |
Lowslope | lower slope, foot slope, colluvial footslope | |
Toeslope | alluvial toeslope | |
Low level | terrace, low flat | |
Channel wall | bank | |
Channel bed | narrow valley bottom, gully arroyo | |
Basin floor | depression | |
Table: soilObs Field: soilHorizon | ||
Value: | Description: | |
L | ||
O | ||
A | ||
E | ||
B | ||
C | ||
R | ||
Table: soilObs Field: soilTexture | ||
Value: | Description: | |
Sand | ||
Sandy loam | ||
Loam | ||
Silt loam | ||
Clay loam | ||
Clay | ||
Peat | ||
Muck | ||
Table: taxonInterpretation Field: interpretationType | ||
Value: | Description: | |
Author | ||
Computer (automated) | ||
Simplification for analysis | ||
Correction | ||
Taxonomic revision | ||
Finer resolution | ||
Table: telephone Field: phoneType | ||
Value: | Description: | |
Work | ||
Home | ||
Cell | ||
Fax | ||
Secretary | ||
Not specified | ||
Table: userDefined Field: userDefinedCategory | ||
Value: | Description: | |
Soil, physical attributes | ||
Soil, chemical attributes | ||
Geology & geomorphology | ||
Moisture | ||
Environment | ||
Topography | ||
Disturbance & land use | ||
Subplots | ||
Not specified | ||
Table: userDefined Field: userDefinedName | ||
Value: | Description: | |
Microbial biomass | ||
Slope convexity | ||
Depth to permafrost | ||