Kounaves, Samuel P; Stroble, Shannon T; Anderson, Rachel M; Moore, Quincy; Catling, David C; Douglas, Susanne; McKay, Christopher P; Ming, Douglas W; Smith, Peter H; Tamppari, Leslie K; Zent, Aaron P (2010): (Table 1) Soil description of pits dug in coastal, inland and higland Antarctic Dry Valleys [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.812153, Supplement to: Kounaves, SP et al. (2010): Discovery of natural perchlorate in the Antarctic Dry Valleys and its global implications. Environmental Science & Technology, 44(7), 2360-2364, https://doi.org/10.1021/es9033606
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Abstract:
In the past few years, it has become increasingly apparent that perchlorate (ClO4-) is present on all continents, except the polar regions where it had not yet been assessed, and that it may have a significant natural source. Here, we report on the discovery of perchlorate in soil and ice from several Antarctic Dry Valleys (ADVs) where concentrations reach up to 1100/µg/kg. In the driest ADV, perchlorate correlates with atmospherically deposited nitrate. Far from anthropogenic activity, ADV perchlorate provides unambiguous evidence that natural perchlorate is ubiquitous on Earth. The discovery has significant implications for the origin of perchlorate, its global biogeochemical interactions, and possible interactions with the polar ice sheets. The results support the hypotheses that perchlorate is produced globally and continuously in the Earth's atmosphere, that it typically accumulates in hyperarid areas, and that it does not build up in oceans or other wet environments most likely because of microbial reduction on a global scale.
Project(s):
Coverage:
Median Latitude: -77.639379 * Median Longitude: 161.821806 * South-bound Latitude: -77.864690 * West-bound Longitude: 160.642810 * North-bound Latitude: -77.368140 * East-bound Longitude: 163.138780
Date/Time Start: 2007-01-01T00:00:00 * Date/Time End: 2008-12-31T00:00:00
Minimum ELEVATION: 21 m a.s.l. * Maximum ELEVATION: 1703 m a.s.l.
Event(s):
Lower_Beacon_P11 * Latitude: -77.821520 * Longitude: 160.642810 * Date/Time Start: 2007-01-01T00:00:00 * Date/Time End: 2008-12-31T00:00:00 * Elevation: 1209.0 m * Location: Antarctica * Method/Device: Digging pit (DPIT)
Comment:
Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | Area/locality | Area | Kounaves, Samuel P | |||
| 5 | Soil type | Soil type | Kounaves, Samuel P | |||
| 6 | Sample ID | Sample ID | Kounaves, Samuel P | pit number | ||
| 7 | ELEVATION | Elevation | m a.s.l. | Geocode | ||
| 8 | Standard deviation | Std dev | ± | Kounaves, Samuel P | elevation | |
| 9 | Depth, reference | Depth ref | m | Kounaves, Samuel P | depth to ice table | |
| 10 | Number | No | Kounaves, Samuel P | of soil horizons | ||
| 11 | Sample comment | Sample comment | Kounaves, Samuel P |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
74 data points
Data
| 1 Event | 2 Latitude | 3 Longitude | 4 Area | 5 Soil type | 6 Sample ID | 7 Elevation [m a.s.l.] | 8 Std dev [±] | 9 Depth ref [m] | 10 No | 11 Sample comment |
|---|---|---|---|---|---|---|---|---|---|---|
| Lower_Taylor_P1 | -77.6017 | 163.1387 | Lower Taylor | subxerous (coastal) | 1 | 21 | 5.5 | 0.28 | 5 | |
| Lower_Taylor_P2 | -77.6017 | 163.1388 | Lower Taylor | subxerous (coastal) | 2 | 21 | 5.5 | 0.28 | 8 | |
| Lower_Taylor_P4 | -77.6000 | 163.1334 | Lower Taylor | subxerous (coastal) | 4 | 41 | 4.9 | 0.29 | 5 | the top (pavement) level soil horizon was not included because of insufficient homogeneity |
| Lower_Taylor_P3 | -77.5955 | 163.1232 | Lower Taylor | subxerous (coastal) | 3 | 108 | 5.5 | 0.34 | 6 | |
| Upper_Wright_P13 | -77.5128 | 161.1549 | Upper Wright | xerous (inland) | 13 | 182 | 5.9 | 0.23 | 4 | the top (pavement) level soil horizon was not included because of insufficient homogeneity |
| Middle_Victoria_P8 | -77.3747 | 161.8083 | Middle Victoria | xerous (inland) | 8 | 357 | 5.8 | 0.19 | 5 | the top (pavement) level soil horizon was not included because of insufficient homogeneity |
| Middle_Victoria_P7 | -77.3681 | 161.8157 | Middle Victoria | xerous (inland) | 7 | 394 | 5.2 | 0.27 | 5 | the top (pavement) level soil horizon was not included because of insufficient homogeneity |
| Lower_Beacon_P11 | -77.8215 | 160.6428 | Lower Beacon | ultraxerous (highlands) | 11 | 1209 | 6.4 | >0.75 | 5 | the ice table was never reached, the top (pavement) level soil horizon was not included because of insufficient homogeneity; perchlorate present in all horizons |
| Middle_Beacon_P20 | -77.8304 | 160.6497 | Middle Beacon | ultraxerous (highlands) | 20 | 1240 | 5.6 | 0.20 | 5 | perchlorate present in all horizons |
| University_Vall_P7 | -77.8621 | 160.7066 | University | ultraxerous (highlands) | 7 | 1683 | 5.9 | 0.34 | 5 | perchlorate present in all horizons |
| University_Vall_P10 | -77.8647 | 160.7278 | University | ultraxerous (highlands) | 10 | 1703 | 5.5 | 0.19 | 4 | perchlorate present in all horizons |