
Fig. 1.
Orthophotomap of the study area with nine aeolian deposition test sites (1–9) located within the Ebba Valley. Weather stations (E – Ebba Valley, S – Sven Glacier, and P – Pyramiden city) are marked with black stars. Orthophotomap source – Norwegian Polar Institute. Inner map shows the location of the study area (black arrows and circle) in the central Spitsbergen, High Arctic.

Fig. 2.
Geomorphological sketch of the study area (Ebba Valley, Svalbard). Modified after the original figure by Rachlewicz (2009).
Table 1.
Total number of quartz grains collected in the Ebba Valley in 2015–2018 divided into grain rounding and matting classes according to Cailleux (1942) with modification by Goździk (1995) and Mycielska-Dow-giałło and Woronko (1998).
| Year | Class | ||||||
|---|---|---|---|---|---|---|---|
| C | EL | EM–EL | RM | EM–RM | NU | Total | |
| 2015 | 83 | 45 | 213 | 55 | 215 | 126 | 737 |
| 2016 | 55 | 29 | 125 | 37 | 73 | 67 | 386 |
| 2017 | 40 | 8 | 64 | 27 | 59 | 14 | 212 |
| 2018 | 47 | 88 | 197 | 110 | 177 | 20 | 639 |

Fig. 3.
Percentage of quartz grains in the Ebba Valley in 2015–2018 divided into grain rounding and matting classes according to Cailleux (1942) with modification by Goździk (1995) and Mycielska-Dowgiałło and Woronko (1998).
Table 2.
Percentage of quartz grains collected in the Ebba Valley in 2015–2018 divided into grain rounding and matting classes according to Cailleux (1942) with modification by Goździk (1995) and Mycielska-Dow-giałło and Woronko (1998).
| Year | Class | |||||
|---|---|---|---|---|---|---|
| C | EL | EM–EL | RM | EM–RM | NU | |
| 2015 | 11.3 | 6.1 | 28.9 | 7.5 | 29.2 | 17.1 |
| 2016 | 14.2 | 7.5 | 32.4 | 9.6 | 18.9 | 17.4 |
| 2017 | 18.9 | 3.8 | 30.2 | 12.7 | 27.8 | 6.6 |
| 2018 | 7.4 | 13.8 | 30.8 | 17.2 | 27.7 | 3.1 |
Table 3.
Total number of quartz grains collected in the Ebba Valley in 2015–2018 divided into grain rounding and matting classes according to Cailleux (1942) with modification by Goździk (1995) and Mycielska-Dow-giałło and Woronko (1998) at nine test sites.
| Test site name | Class | ||||||
|---|---|---|---|---|---|---|---|
| C | EL | EM–EL | RM | EM–RM | NU | Total | |
| The mouth of the valley with dense vegetation | |||||||
| 1. Wet tundra | 4 | 2 | 4 | 6 | 8 | 0 | 24 |
| 2. Dry tundra | 2 | 0 | 2 | 1 | 7 | 2 | 14 |
| The middle part of the valley floor with little or no vegetation | |||||||
| 3. Leeward slope | 9 | 0 | 11 | 3 | 7 | 4 | 34 |
| 4. Highest marine terrace top | 12 | 8 | 31 | 16 | 26 | 11 | 104 |
| 5. Windward slope | 38 | 66 | 151 | 82 | 139 | 54 | 530 |
| 6. Sandy surface | 66 | 55 | 202 | 70 | 172 | 80 | 645 |
| 7. Central part of the valley | 47 | 26 | 90 | 21 | 67 | 26 | 277 |
| The upper part of the valley without vegetation cover | |||||||
| 8. Sandur | 12 | 5 | 23 | 20 | 28 | 14 | 102 |
| 9. Moraine | 35 | 8 | 85 | 10 | 70 | 36 | 244 |

Fig. 4.
Percentage of quartz grains in the years 2015–2018 collected in Ebba Valley divided into grain rounding and matting classes according to Cailleux (1942) with modification by Goździk (1995) and Mycielska-Dowgiałło and Woronko (1998) at nine test sites.
Table 4.
Percentage of quartz grains collected in the Ebba Valley in 2015–2018 divided into grain rounding and matting classes according to Cailleux (1942) with modification by Goździk (1995) and Mycielska-Dowgiałło and Woronko (1998) at nine test sites.
| Test site name | Class | ||||||
|---|---|---|---|---|---|---|---|
| C | EL | EM–EL | RM | EM–RM | NU | ||
| The mouth of the valley with dense vegetation | |||||||
| 1. Wet tundra | 16.7 | 8.3 | 16.7 | 25.0 | 33.3 | 0.0 | |
| 2. Dry tundra | 14.3 | 0.0 | 14.3 | 7.1 | 50.0 | 14.3 | |
| The middle part of the valley floor with little or no vegetation | |||||||
| 3. Leeward slope | 26.5 | 0.0 | 32.4 | 8.8 | 20.6 | 11.8 | |
| 4. Highest marine terrace top | 11.5 | 7.7 | 29.8 | 15.4 | 25.0 | 10.6 | |
| 5. Windward slope | 7.2 | 12.5 | 28.5 | 15.5 | 26.2 | 10.2 | |
| 6. Sandy surface | 10.2 | 8.5 | 31.3 | 10.9 | 26.7 | 12.4 | |
| 7. Central part of the valley | 17.0 | 9.4 | 32.5 | 7.6 | 24.2 | 9.4 | |
| The upper part of the valley without vegetation cover | |||||||
| 8. Sandur | 11.8 | 4.9 | 22.5 | 19.6 | 27.5 | 13.7 | |
| 9. Moraine | 14.3 | 3.3 | 34.8 | 4.1 | 28.7 | 14.8 | |
Table 5.
Spearman’s rank correlation coeffcient between different quartz grain types collected in the Ebba Valley and different meteorological variables. The red colour indicates a positive correlation. The blue colour indicates a negative correlation.
| Parameter | C | EL | EM–EL | RM | EM–RM | NU |
|---|---|---|---|---|---|---|
| Average wind speed Ebba Valley | –0.01 p = 0.92 | –0.02 p = 0.87 | –0.03 p = 0.75 | –0,14 p = 0.19 | –0.05 p = 0.63 | 0.49 p < 0.01 |
| Average wind speed Pyramiden | 0.08 p = 0.43 | –0.31 p < 0.01 | –0.22 p = 0.04 | –0.08 p = 0.47 | 0 p = 0.99 | –0.01 p = 0.92 |
| Average wind speed Sven Glacier | –0.04 p = 0.71 | –0.1 p = 0.34 | 0.04 p = 0.73 | –0.18 p = 0.08 | –0.13 p = 0.23 | 0.45 p < 0.01 |
| Average temperature Ebba Valley | –0.07 p = 0.52 | 0.31 p < 0.01 | 0.21 p = 0.05 | 0.03 p = 0.76 | 0.01 p = 0.91 | 0.23 p = 0.03 |
| Total precipitation Longyearbyen | –0.08 p = 0.43 | 0.31 p < 0.01 | 0.22 p = 0.04 | 0.08 p = 0.47 | 0 p = 0.99 | 0.01 p = 0.92 |
| Average air humidity Ebba Valley | –0.08 p = 0.46 | 0.08 p = 0.47 | 0.11 p = 0.3 | 0.05 p = 0.66 | –0.07 p = 0.5 | –0.26 p = 0.01 |
| 2015 | Trap 1 | Trap 2 | Trap 3 | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C | EL | EM–EL | RM | EM–RM | NU | C | EL | EM–EL | RM | EM–RM | NU | C | EL | EM–EL | RM | EM–RM | NU | |
| Wet tundra | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry tundra | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Leeward slope | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Highest marine terrace top | 1 | 1 | 6 | 4 | 4 | 3 | 2 | 0 | 2 | 3 | 5 | 1 | 3 | 1 | 5 | 1 | 3 | 0 |
| Windward slope | 3 | 10 | 13 | 21 | 30 | 7 | 2 | 9 | 8 | 5 | 15 | 5 | 5 | 0 | 7 | 0 | 6 | 5 |
| Sandy surface | 26 | 0 | 68 | 5 | 65 | 57 | 9 | 2 | 13 | 0 | 10 | 4 | ||||||
| Central part | 10 | 3 | 30 | 3 | 27 | 3 | 2 | 8 | 10 | 3 | 6 | 5 | 3 | 4 | 7 | 3 | 5 | 4 |
| Sandur | 3 | 2 | 4 | 2 | 4 | 2 | 1 | 2 | 5 | 1 | 4 | 4 | 0 | 0 | 3 | 2 | 0 | 1 |
| Moraine | 10 | 1 | 18 | 1 | 21 | 13 | 3 | 2 | 6 | 0 | 8 | 9 | 0 | 0 | 8 | 0 | 2 | 3 |
| 2016 | Trap 1 | Trap 2 | Trap 3 | |||||||||||||||
| C | EL | EM–EL | RM | EM–RM | NU | C | EL | EM–EL | RM | EM–RM | NU | C | EL | EM–EL | RM | EM–RM | NU | |
| Wet tundra | 2 | 0 | 3 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry tundra | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Leeward slope | 4 | 0 | 4 | 0 | 2 | 3 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
| Highest marine terrace top | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 0 | 0 | 0 | 4 | 3 | 1 | 0 |
| Windward slope | 7 | 6 | 21 | 9 | 13 | 6 | 7 | 3 | 11 | 0 | 6 | 11 | 4 | 1 | 22 | 0 | 5 | 15 |
| Sandy surface | 1 | 3 | 3 | 2 | 3 | 1 | 6 | 4 | 10 | 7 | 8 | 6 | 4 | 9 | 19 | 10 | 12 | 3 |
| Central part | 6 | 0 | 7 | 2 | 5 | 8 | 5 | 2 | 5 | 0 | 3 | 0 | ||||||
| Sandur | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 |
| Moraine | 0 | 0 | 0 | 0 | 1 | 3 | 5 | 0 | 7 | 0 | 3 | 5 | 2 | 0 | 4 | 0 | 4 | 2 |
| 2017 | Trap 1 | Trap 2 | Trap 3 | |||||||||||||||
| C | EL | EM–EL | RM | EM–RM | NU | C | EL | EM–EL | RM | EM–RM | NU | C | EL | EM–EL | RM | EM–RM | NU | |
| Wet tundra | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
| Dry tundra | 0 | 0 | 0 | 0 | 2 | 1 | 2 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
| Leeward slope | 2 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 0 | 1 | 0 | 0 | 0 |
| Highest marine terrace top | 0 | 0 | 1 | 0 | 2 | 3 | 1 | 1 | 3 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 3 | 0 |
| Windward slope | 1 | 1 | 3 | 2 | 2 | 0 | 1 | 2 | 7 | 3 | 6 | 2 | 1 | 0 | 11 | 4 | 4 | 0 |
| Sandy surface | 2 | 0 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 5 | 0 | 4 | 2 | 2 | 2 |
| Central part | 4 | 1 | 7 | 0 | 2 | 1 | 5 | 0 | 3 | 1 | 3 | 0 | 3 | 0 | 5 | 2 | 4 | 0 |
| Sandur | 1 | 0 | 1 | 0 | 2 | 2 | 1 | 1 | 2 | 3 | 2 | 1 | 0 | 0 | 1 | 1 | 4 | 1 |
| Moraine | 3 | 0 | 5 | 0 | 5 | 0 | 0 | 1 | 6 | 1 | 5 | 1 | 4 | 0 | 2 | 2 | 2 | 0 |
| 2018 | Trap 1 | Trap 2 | Trap 3 | |||||||||||||||
| C | EL | EM–EL | RM | EM–RM | NU | C | EL | EM–EL | RM | EM–RM | NU | C | EL | EM–EL | RM | EM–RM | NU | |
| Wet tundra | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 3 | 2 | 0 |
| Dry tundra | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Leeward slope | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 3 | 0 |
| Highest marine terrace top | 2 | 3 | 5 | 2 | 4 | 4 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 3 | 1 | 1 | 0 |
| Windward slope | 2 | 14 | 14 | 4 | 10 | 0 | 1 | 11 | 16 | 10 | 8 | 1 | 4 | 9 | 18 | 24 | 34 | 2 |
| Sandy surface | 3 | 12 | 32 | 5 | 22 | 1 | 5 | 18 | 41 | 10 | 16 | 4 | 5 | 6 | 11 | 27 | 33 | 2 |
| Central part | 2 | 3 | 3 | 2 | 4 | 1 | 3 | 3 | 4 | 3 | 4 | 4 | 4 | 2 | 9 | 2 | 4 | 0 |
| Sandur | 3 | 0 | 1 | 2 | 3 | 0 | 1 | 0 | 2 | 4 | 4 | 1 | 1 | 0 | 2 | 5 | 5 | 0 |
| Moraine | 2 | 0 | 8 | 1 | 6 | 0 | 3 | 4 | 6 | 2 | 7 | 0 | 3 | 0 | 15 | 3 | 6 | 0 |