Search restricted to attribute 1045 - Date_Capture
Use link on Feature Type Code to see details of that Feature Type.
| Code | Feature Type | Definition |
|---|---|---|
| 128 | Blue ice | Bands of transparent ice containing no air bubbles, its mass acquiring a blueish tint. |
| 148 | Coastline | A line or zone where the land meets the sea or some other large expanse of water. This includes the boundaries of continent and island feature types. |
| 149 | Contaminated area | Any site or region that is damaged, harmed or made unfit for use by the introduction of unwanted substances, particularly microorganisms, chemicals, toxic and radioactive materials and wastes. |
| 158 | Crevasse | A fissure formed in a glacier. Crevasses are often hidden by snow bridges. |
| 159 | Crevasse field | An area of crevasses. |
| 160 | Crevasse field boundary | The boundary line of a crevasse field. |
| 166 | Doline | Large oval-shaped depressions in ice shelves and glaciers. Adopted from Karst. |
| 168 | Drift tail | A long bank of snow formed by the wind in the lee of the disturbance. |
| 179 | Fish | Cold-blooded aquatic vertebrates. |
| 184 | Flying Bird | Feathered vertebrate with two wings and two feet. |
| 190 | Frost crack | A fissure in the ice formed by frost. |
| 196 | Glacier | A mass of snow and ice continuously moving from higher to lower ground or, if afloat, continuously spreading. |
| 197 | Glacier boundary | The approximate boundary of a mass of flowing ice. |
| 199 | Grounding line | The boundary or zone where the continental ice is grounded and where it floats. |
| 203 | Hillock | A local high point of an ice sheet or ice cap |
| 208 | Ice | The solid state of water, monomineral rock. |
| 209 | Ice boundary | The boundary of the ice. |
| 210 | Ice field | Flat glaciated area, underlying topography is not completely levelled out |
| 211 | Ice foot | A narrow fringe of floating ice attached to the coast and remaining after annual landfast sea ice has broken free. |
| 212 | Ice fringe | A very narrow ice piedmont, extending less than about 1 km inland from the sea. |
| 189 | Ice front | The vertical cliff forming the seaward face of an ice shelf or other floating glacier, varying in height to 2 to 50 m above sea level. |
| 213 | Ice rise | A mass of ice resting on rock and surrounded either by an ice shelf, or partly by an ice shelf and partly by sea. No rock is exposed and there may be none above sea level. Ice rises often have a dome-shaped surface. The largest known is about 100 km across. |
| 214 | Ice rise boundary | The boundary of the ice rise. |
| 282 | Ice rumple | A locally grounded area of ice shelf which is overridden by an ice sheet. ice rumples are distinguished by crevassing together with a rise in the surface. The criterion for distinguishing between ice rumples and an ice rise is the direction of ice movement as shown by the crevasse pattern. ice may be deflected or even halted by ice rumples, but in an ice rise, movement is independent of that of the ice shelf and, being inthe main radial, will in places oppose it. No known ice rumples rise more than 50 m above ice shelf surface level, whereas ice rises may be up to several hundred metres high. |
| 283 | Ice rumple boundary | The boundary of the ice rumple. |
| 297 | Ice sheet | A mass of ice and snow of considerable thickness and large area. Ice sheets may be resting on rock or floating. Ice sheets of less than about 50,000 square km resting on rock are called ice caps. |
| 298 | Ice shelf | A floating ice sheet of considerable thickness attached to a coast. Ice shelves are usually of great horizontal extent and have a level or gently undulating surface. They are nourished by the accumulation of snow and often by seaward extension of land glaciers. Limited areas may be aground. The seaward edge is termed an ice front. |
| 598 | Ice shelf boundary | The boundary of the ice shelf. |
| 215 | Ice stream | Part of an ice sheet in which the ice flows more rapidly and not necessarily in the same direction as the surrounding ice. The margins are sometimes clearly marked by a change in direction of the surface slope, but may be indistinct. |
| 216 | Ice thickness | A point locality at which the ice thickness to bedrock has been measured. |
| 217 | Iceberg | A massive piece of ice of greatly varying shape, more than 5 m above sea-level, which has broken away from a glacier (or an ice shelf), and which may be afloat or aground. Icebergs may be described as tabular, dome-shaped, sloping, pinnacled, weathered or glacier bergs (an irregularly shaped iceberg). Icebergs are not sea ice. They originate from the ice mass of the Antarctic continent that has accumulated over many thousands of years. When they melt they add fresh water to the ocean. |
| 218 | Icefall | The portion of a glacier at a point of steep descent, segmented by many transverse crevasses into separate blocks. |
| 220 | Introduction of animal species | Animals which have been translocated by human agency into lands or waters where they have not lived previously, at least during historic times. Such translocation of species always involves an element of risk if not of serious danger. Newly arrived species, depending on their interspecific relationships and characteristics, may act as or carry parasites or diseases, prey upon native organisms, display toxic reactions, or be highly competitive with or otherwise adversely affect native species and communities. |
| 221 | Introduction of plant species | Plants which have been translocated by human agency into lands or waters where they have not lived previously, at least during historic times. Such translocation of species always involves an element of risk if not of serious danger. Newly arrived species may be highly competitive with or otherwise adversely affect native species and communities. Some may become a nuisance through sheer overabundance. They may become liable to rapid genetic changes in their new environment. Many harmful introductions have been made by persons unqualified to anticipate the often complex ecological interaction which may ensue. On the other hand many plants introduced into modified or degraded environments may be more useful than native species in controlling erosion or in performing other positive functions. |
| 388 | Lagoon | Enclosed area of salt or brackish water separated at times from the sea by a more or less effective obstacle such as a beach bar, or shelf, cf. lake. |
| 234 | Mammal | Any animal of the Mammalia, a large class of warmblooded vertebrates having mammary glands in the female, a thoracic diaphragm, and a four-chambered heart. The class includes the whales, carnivores, rodents, bats, primates, etc. |
| 239 | Mapping extent | The extent of the area that was mapped to create a dataset. |
| 245 | Moraine | A mound, ridge, or other distinct accumulation of unsorted, unstratified glacial drift, predominantly till, deposited primarily by direct action of glacier ice, in a variety of topographic landforms that are independent of control by the surface on which the drift lies. |
| 397 | Nunatak | A small mountain, rocky crag or outcrop projecting from a glacier, ice shelf or snowfield. |
| 249 | Outcrop | A detached rock mass, or group or rocks, distinctively shaped by erosion and weathering. |
| 253 | Patterned ground | Well-defined features, such as circles, polygons, nets, steps and stripes, characteristic of areas at some time subject to intensive frost action |
| 254 | Penguin | Sea-fowl of southern hemisphere with wings developed into scaly flippers with which it swims under the water. |
| 259 | Plant species | Species belonging to the plant kingdom. |
| 261 | Polynya | Any water in pack ice or fast ice other than a lead, not large enough to be called open water. If a polynya is found in the same region every year, e.g. of the mouths of big rivers, it is called a recurring polynya. A temporary small clearing in pack ice which consists of small floes and brash in continuous local movement is called an unstable polynya; an opening which is flanked by large floes and therefore appears to be relatively stable is called a stable polynya. When frozen over, a polynya becomes an ice shylight from the point of view of the submariner. |
| 276 | Reptile | A class of terrestrial vertebrates, characterized by the lack of hair, feathers, and mammary glands; the skin is covered with scales, they have a three chambered heart and the pleural and peritoneal cavities are continuous. |
| 277 | Rift | A long narrow fissure, usually extending parallel to the ice front; a line of weakness in an ice shelf |
| 279 | Rock | Any aggregate of minerals that makes up part of the earth's crust. It may be unconsolidated, such as sand, clay, or mud, or consolidated, such as granite, limestone, or coal. |
| 280 | Rock boundary | The boundary line of a lithological unit, where not defined by a fault, dyke or vein. |
| 288 | Sand | A loose material consisting of small mineral particles, or rock and mineral particles, distinguishable by the naked eye; grains vary from almost spherical to angular, with a diameter range from 1/16 to 2 millimeters. |
| 553 | Satellite Image | Satellite image footprint. Each footprint represents one image taken from a sensor on a satellite taken from space. |
| 452 | Scientific Site | A location of scientific study site or where a sample was taken. It also includes the location of scientific markers to relocate sites. |
| 291 | Scree | A slope or base of a cliff consisting of broken rock fragments. |
| 292 | Scree boundary | The boundary of the scree. |
| 293 | Sea | A body of salty water that covers much of the earth. |
| 294 | Sea ice | Any form of ice found at sea which has originated from the freezing of sea water. |
| 296 | Shear zone | A linear zone (narrow compared to its length) where there is evidence of shear stress in the form of many parallel fractures in the ice, usually at the margins of major ice streams |
| 300 | Shoal | A sandbank or sandbar that makes the water shallow and presents a navigation hazard. |
| 301 | Shore | Land that adjoins sea or large body of water |
| 549 | Site record | To record site information relating any sort of study |
| 303 | Snow | Atmospheric precipitation of ice crystals. |
| 304 | Snow bank | A large drift or wall of snow. |
| 305 | Snow boundary | The boundary line of the snow. |
| 306 | Snow bridge | An arch formed by snow which has drifted across a crevasse, forming first a cornice, and ultimately a covering which may completely obsure the opening. |
| 307 | Snow patch | An isolated area of snow, lying above or below the regional snow line, which may last throughout the summer, and is composed of firn. |
| 314 | Storage | A temporary structure or collection of goods e.g shipping containers, shipping goods, gravel stockpile. |
| 315 | Strand crack | A fissure at the junction between an inland ice sheet, ice piedmont or ice rise and an ice shelf, the latter being subject to the rise and fall of the tide. |
| 322 | Thaw hole | Vertical hole in floating ice formed when a puddle melts through to the underlying water. |
| 324 | Tide crack | The fissure at the line of junction between immovable icefoot or icewall and fast ice, the latter being subject to the rise and fall of the tide. |
| 325 | Tongue | A projection of the ice edge up to several km in length caused by wind and current. |
| 326 | Tongue boundary | The boundary of the tongue. |
| 340 | Ventifact | Ice which is stone worn, polished, or faceted by windblown sand. |
| 341 | Volcanic cone | A conical mass of which the base is a circle and the summit a point. The term is used frequently in connection with a volcanic. |
| 343 | Wall | An ice cliff forming the seaward margin of an inland ice sheet, ice cap, ice piedmont or ice rise. The rock basement may be at or below sea level. |
| 345 | Water body | An enclosed body of water, usually but not necessarily fresh water, from which the sea is excluded. |
| 346 | Watercourse | A natural stream arising in a given drainage basin but not wholly dependent for its flow on surface drainage in its immediate area, flowing in a channel with a well-defined bed between visible banks or through a definite depression in the land, having a definite and permanent or periodic supply of water, and usually, but not necessarily, having a perceptible current in a particular direction and discharging at a fixed point into another body of water. |