| 11. |
- Jansson, Peter, et al.
(author)
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Editorial
- 2017
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In: Geografiska Annaler: Series A, Physical Geography. - : Informa UK Limited. - 0435-3676 .- 1468-0459. ; 99:1
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Journal article (other academic/artistic)abstract
- With this first issue of volume 99 of Geografiska Annaler, Series A: Physical Geography, the journal has undergone several changes. First of all, we are pleased to now collaborate with Taylor & Francis. This move will not affect how authors interact with the journal, but we see this as part of the continuous improvement of it. Also, we have changed to a new layout which better caters for online reading than the two-column format the journal has used since 1965. With this change in style we have also implemented a new reference format, which follows the Council of Science Editors (CSE) style. This is a form which is simple and concise, and also easily available in different writing tools that can aid the author
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| 12. |
- Jansson, Peter, et al.
(author)
-
Editorial
- 2018
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In: Geografiska Annaler. - 0435-3676 .- 1468-0459. ; 100:1, s. 1-3
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Journal article (other academic/artistic)
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| 13. |
- Kalinska-Nartisa, Edyta, et al.
(author)
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Sandy fan-like forms in the central-eastern mazovian lowland (central poland) : Textural record and chronology
- 2016
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In: Geografiska Annaler, Series A: Physical Geography. - : Informa UK Limited. - 0435-3676 .- 1468-0459. ; 98:2, s. 111-127
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Journal article (peer-reviewed)abstract
- A unique, continuous, fan-shaped belt of sandy landforms in the central-eastern Mazovian Lowland, Central Poland has been investigated using a multiproxy dataset of sediment physical properties and chronological framework. Although there are several previous studies of similar fan-like forms elsewhere in Central Poland, this central-eastern part has not been investigated in detail. A combined methodological approach, using grain-size distributions, the roundness, surface character and microtexture of quartz grains, and the mineral composition of the light and heavy fractions, indicate a predominantly aeolian origin for the fan-like forms. Overlying them are dunes, the sediment within which is derived mainly from the fan-like forms. Two main aeolian phases are distinguished based on luminescence ages: (1) between around 15 and 16 ka, possibly correlated with the Pomeranian Phase of the last (Vistulian) glaciation in Poland, and representing a phase with a poorly recorded deflation event; and (2) around 12 ka, associated with the Younger Dryas onset, when fresh, non-aeolian material was delivered to the system. Overall, the palaeoenvironmental pattern of the fan-like forms is controlled by the Upper Pleistocene aeolian trends.
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| 14. |
- Linderholm, Hans W., 1968
(author)
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Editorial
- 2019
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In: Geografiska Annaler, Series A: Physical Geography. - : Informa UK Limited. - 0435-3676 .- 1468-0459. ; 101:2
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Journal article (other academic/artistic)
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| 15. |
- Lyon, Steve W., et al.
(author)
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WHY MONITOR CARBON IN HIGH-ALPINE STREAMS?
- 2016
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In: Geografiska Annaler. Series A, Physical Geography. - : Informa UK Limited. - 0435-3676 .- 1468-0459. ; 98:3, s. 237-245
-
Journal article (peer-reviewed)abstract
- In this short communication, we report on dissolved organic and inorganic carbon concentrations from a summer stream monitoring campaign at the main hydrological catchment of the Tarfala Research Station in northern Sweden. Further, we place these unique high-alpine observations in the context of a relevant subset of Sweden's national monitoring programme. Our analysis shows that while the monitoring programme (at least for total organic carbon) may have relatively good representativeness across a range of forest coverages, alpine/tundra environments are potentially underrepresented. As for dissolved inorganic carbon, there is currently no national monitoring in Sweden. Since the selection of stream water monitoring locations and monitored constituents at the national scale can be motivated by any number of goals (or limitations), monitoring at the Tarfala Research Station along with other research catchment sites across Fennoscandia becomes increasingly important and can offer potential complementary data necessary for improving process understanding. Research catchment sites (typically not included in national monitoring programmes) can help cover small-scale landscape features and thus complement national monitoring thereby improving the ability to capture hot spots and hot moments of biogeochemical export. This provides a valuable baseline of current conditions in high-alpine environments against which to gauge future changes in response to potential climatic and land cover shifts.
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| 16. |
- Nohrstedt, Daniel, 1974-, et al.
(author)
-
Do Floods Drive Crisis Mitigation Policy? : Evidence from Swedish Municipalities
- 2015
-
In: Geografiska Annaler. Series A, Physical Geography. - Chichester, West Sussex : Wiley-Blackwell. - 0435-3676 .- 1468-0459. ; 97:1, s. 109-122
-
Journal article (peer-reviewed)abstract
- It is well established that continuous development of local-level mitigation policy plans and actions increases the chances of effective responses to natural hazards. What is less well known is how and why policy development, including the scope and pace of changes in municipality crisis mitigation programs, varies across local-level crisis mitigation systems. Using survey data on municipality hazard mitigation policy in Sweden, this study documents patterns of policy development and explores candidate explanations. Special attention is devoted to floods, which present local managers with opportunities to learn and adjust local mitigation policies. To investigate floods along with other hazards as potential drivers for local mitigation policy, the study examines three approaches to policy development: external shocks, transformation without disruption, and regional diffusion. Overall, in this case, the transformation without disruption model and the regional diffusion model do better than the external shocks model. Important precursors of policy development include collaboration, learning and diffusion effects from events and policy adoption in nearby municipalities. The study demonstrates the value of a broader analytical approach to policy development, which takes into account the interplay between events, collaborative management, and learning.
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| 17. |
- Nohrstedt, Daniel, et al.
(author)
-
Do floods drive hazard mitigation policy? : Evidence from swedish municipalities
- 2015
-
In: Geografiska Annaler. Series A, Physical Geography. - : Informa UK Limited. - 0435-3676 .- 1468-0459. ; 97:1, s. 109-122
-
Journal article (peer-reviewed)abstract
- It is well established that continuous development of local-level mitigation policy plans and actions increases the chances of effective responses to natural hazards. What is less well known is how and why policy development, including the scope and pace of changes in municipality crisis mitigation programs, varies across local-level crisis mitigation systems. Using survey data on municipality hazard mitigation policy in Sweden, this study documents patterns of policy development and explores candidate explanations. Special attention is devoted to floods, which present local managers with opportunities to learn and adjust local mitigation policies. To investigate floods along with other hazards as potential drivers for local mitigation policy, the study examines three approaches to policy development: external shocks, transformation without disruption, and regional diffusion. Overall, in this case, the transformation without disruption model and the regional diffusion model do better than the external shocks model. Important precursors of policy development include collaboration, learning and diffusion effects from events and policy adoption in nearby municipalities. The study demonstrates the value of a broader analytical approach to policy development, which takes into account the interplay between events, collaborative management, and learning.
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| 18. |
- Olauson, Jon, et al.
(author)
-
Wind Energy Converters and Photovoltaics for Generation of Electricity after Natural Disasters
- 2015
-
In: Geografiska Annaler. Series A, Physical Geography. - : Informa UK Limited. - 0435-3676 .- 1468-0459. ; 97:1, s. 9-23
-
Journal article (peer-reviewed)abstract
- During recovery and reconstruction after a natural disaster, an autonomous power supply might be needed for an extended period of time. In this work, the feasibility of using small-scale wind power and battery storage for power supply is evaluated and compared with systems containing photovoltaics. The investment cost per yearly produced kWh and for an optimized energy system supplying small loads (2 or 20 kW peak) has been calculated for 32 sites, predominantly in Africa and the Middle East. The sites represent foreign activities of the Swedish Civil Contingencies Agency at the end of 2012.Since wind speed measurement series often have a lot of missing data, autoregressive moving average models were trained and used to generate hourly time series of wind speed. This methodology proved robust, even when data availability was very low or when measurements were only taken every third hour. The results of the simulations show that photovoltaic/battery systems outperform wind/battery systems at all evaluated sites. This can be explained by lower investment cost per yearly produced kWh and smoother daily/weekly power output over the year for the photovoltaic system. The proportion of wind power for optimized systems comprising wind, photovoltaics and battery bank is generally very low and the system cost is almost identical to the corresponding photovoltaic/battery systems. In conclusion, at lower latitudes and with little time for a proper wind measurement campaign, photovoltaics should be the primary candidate for replacing or complementing conventional diesel generators.
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| 19. |
- Parker, Charles F.
(author)
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Complex Negative Events and the Diffusion of Crisis : Lessons from the 2010 and 2011 Icelandic Volcanic Ash Cloud Events
- 2015
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In: Geografiska Annaler. Series A, Physical Geography. - : Swedish Society for Anthropology and Geography. - 0435-3676 .- 1468-0459. ; 97:1, s. 97-108
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Journal article (peer-reviewed)abstract
- In a world characterized by complex interdependence, crises that originate in one country have the potential to rapidly diffuse across borders and have profound regional and even global impacts. The eruption of the Icelandic volcano Eyjafjallajökull in April 2010 demonstrates how rapidly a natural disaster can morph from a local crisis with local effects to a cascading crisis with international effects across multiple sectors. After spreading to Europe the ash cloud severely disrupted air travel and paralyzed the European aviation transport system. This cascading crisis caught authorities by surprise and revealed the need to improve crisis preparedness to deal with the threat of volcanic ash in particular and aviation in general at the international, EU, and national levels. In the aftermath of the event, reforms and policy changes ensued. Just over a year later, the Icelandic volcano Grímsvötn erupted, providing an opportunity to observe the revised system respond to a similar event. The origins, response, reforms, lessons learned, and questions of resilience connected to these complex negative events are the subject of this paper. The article concludes by addressing the question of whether and to what extent the vulnerabilities and problems exposed by the 2010 volcanic ash cloud event are amenable to reform.
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| 20. |
- Ryden, Jesper
(author)
-
A Statistical Analysis of Trends for Warm and Cold Spells in Uppsala by Means of Counts
- 2015
-
In: Geografiska Annaler. Series A, Physical Geography. - : Informa UK Limited. - 0435-3676 .- 1468-0459. ; 97:3, s. 431-436
-
Journal article (peer-reviewed)abstract
- Statistical studies of extremes are of interest in the climatic sciences, in particular trends of periods of unusually warm or cold weather, which could be labelled warm and cold spells, respectively. We study the yearly number of spells in Uppsala, Sweden which from a data-analytic point of view truly are counts, and employ theory and methods from the field of regression models for counts. A possible trend for the period 1840-2012 was investigated. The trend for warm spells is positive and demonstrated to be larger in magnitude compared with the one for cold spells, and is found to be statistically significant. The methodology could be extended to analyse other climate indicators.
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