Geografiska Annaler Series A-Physical Geography最新文献

The effect of valley confluence and bedrock geology upon the location and depth of glacial overdeepenings 河谷合流和基岩地质对冰川过深位置和深度的影响

IF 1.5 4区地球科学

Geografiska Annaler Series A-Physical Geography Pub Date : 2023-06-05 DOI: 10.1080/04353676.2023.2217047

C. Lloyd, C. Clark, D. Swift

引用次数: 0

Using fallout 137Cs and OSL as sediment tracers in badlands: a case study of Tepezalá volcano (Central Mexico) 利用放射性尘埃137Cs和OSL作为荒地沉积物示踪剂:以墨西哥中部tepezal<e:1>火山为例

IF 1.5 4区地球科学

Geografiska Annaler Series A-Physical Geography Pub Date : 2023-01-02 DOI: 10.1080/04353676.2023.2171999

E. Muñoz-Salinas, M. Castillo, J. L. Arce, A. Correa-Metrio, E. Cruz-Zaragoza, A. Valoix

{"title":"Using fallout 137Cs and OSL as sediment tracers in badlands: a case study of Tepezalá volcano (Central Mexico)","authors":"E. Muñoz-Salinas, M. Castillo, J. L. Arce, A. Correa-Metrio, E. Cruz-Zaragoza, A. Valoix","doi":"10.1080/04353676.2023.2171999","DOIUrl":"https://doi.org/10.1080/04353676.2023.2171999","url":null,"abstract":"ABSTRACT Badlands are dynamic landforms that cause soil loss over extensive areas. In this study, we analyze recent sediment mobilization in a badland area by using a novel approach that integrates fallout 137Cs and optically stimulated luminescence (OSL). We assess how erosion and sediment storage operate over the Tepezalá volcano, a tephra cone located in central Mexico. We analyzed a set of sediment samples extracted from the surface of an altitudinal sequence with different land uses to explore how landscape management practices relate to erosion and, depth profiles from local sinks, to detect patterns of sediment mobilization and sedimentation. We compared 137Cs and OSL results with reference values to evaluate whether erosion or deposition is predominant and to assess how deep the erosive processes in the landscape are. Results from fallout 137Cs values indicate that in those badlands with implemented actions to mitigate erosion, sediment is retained. The high luminescence values show that the edaphic soil has been flushed away, and subsoil crops out in some of the sampled sites. For the case of depth profiles, maximum values of 137Cs coincide with high luminescence values, suggesting that in such sites, the sediment was mobilized during rapid incision episodes that caused widespread erosion of the landscape. We detected at least three episodes of rapid incision in 10 years of sediment record. We propose that using 137Cs and OSL together can provide valuable information of the sediment transport in settings dominated by fast erosion as do occur for the case of badlands.","PeriodicalId":55112,"journal":{"name":"Geografiska Annaler Series A-Physical Geography","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87899010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Establishing a record of extreme debris flow events in a high Alpine catchment since the end of the Little Ice Age using lichenometric dating 利用地衣测定年代法建立了小冰期结束以来高寒流域极端泥石流事件的记录

IF 1.5 4区地球科学

Geografiska Annaler Series A-Physical Geography Pub Date : 2023-01-02 DOI: 10.1080/04353676.2023.2187531

Jakob Rom, F. Haas, T. Heckmann, Fabian Dremel, Fabian Fleischer, M. Altmann, M. Stark, M. Becht

{"title":"Establishing a record of extreme debris flow events in a high Alpine catchment since the end of the Little Ice Age using lichenometric dating","authors":"Jakob Rom, F. Haas, T. Heckmann, Fabian Dremel, Fabian Fleischer, M. Altmann, M. Stark, M. Becht","doi":"10.1080/04353676.2023.2187531","DOIUrl":"https://doi.org/10.1080/04353676.2023.2187531","url":null,"abstract":"ABSTRACT Establishing a record of large debris flow events in high Alpine areas prior to the availability of high resolution remote sensing data can be very challenging. In this study, we investigate the debris flow activity in two tributary valleys of the Horlachtal catchment in Tyrol, Austria between the end of the Little Ice Age at about 1850 and the first available area wide aerial images from 1947. To accomplish this, we calculated a local lichenometric calibration curve using the long axis diameters of the five largest Rhizocarpon lichen thalli at 51 different reference locations. Because of the interval-censored dating of most of the reference sites, we established a bootstrapping approach within the calibration curve calculation process. With the help of the lichenometric calibration data, we were able to date 47 old debris flow deposits in the study area. The results indicate no increasing or decreasing trends in frequencies of extreme debris flow events. In addition, the results point to a very local character of debris flow triggering precipitation events, as we can detect major differences in neighbouring valleys. Lichenometric derived datings also provide temporal informations about the end of debris flow activity at some sites in the study area and thus can contribute to a better understanding of debris flow systems.","PeriodicalId":55112,"journal":{"name":"Geografiska Annaler Series A-Physical Geography","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79548726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Reconstruction of post-little ice age glacier recession in the Lahaul Himalaya, north-west India 印度西北部拉哈尔喜马拉雅地区小冰期后冰川消退的重建

IF 1.5 4区地球科学

Geografiska Annaler Series A-Physical Geography Pub Date : 2022-12-12 DOI: 10.1080/04353676.2022.2148082

Sanjay Deswal, M. Sharma, Rakesh Saini, P. Chand, Satya Prakash, Pawan Kumar, I. Barr, Syed Umer Latief, Padma Dalal, I. M. Bahuguna

{"title":"Reconstruction of post-little ice age glacier recession in the Lahaul Himalaya, north-west India","authors":"Sanjay Deswal, M. Sharma, Rakesh Saini, P. Chand, Satya Prakash, Pawan Kumar, I. Barr, Syed Umer Latief, Padma Dalal, I. M. Bahuguna","doi":"10.1080/04353676.2022.2148082","DOIUrl":"https://doi.org/10.1080/04353676.2022.2148082","url":null,"abstract":"ABSTRACT Understanding past glaciation and deglaciation is vital for assessing present-day glacier dynamics and response to climate change. We focus on reconstructing past glacier fluctuations in Lahaul, north-west India, a region located between arid Ladakh and the humid the Pir-Panjal range. We focus specifically on six glaciers in the Miyar and Thirot catchments of varying size, aspect and debris cover. To reconstruct past terminus fluctuations of these glaciers, we used repeat terrestrial photography and historical archives as data sets and mapped the terminus positions and latero-terminal moraines in the field along with glacier terminus mapping from high to medium resolution satellite images (e.g. Corona, Hexagon, Landsat and LISS IV). Results show that since the little ice age, all the studied glaciers have experienced terminus retreat and area loss, with average values of 1.46 and 0.9 km2, respectively. Precipitation data show a statistically significant decreasing trend during the last century with an increasing trend in annual average maximum (T max) and minimum (T min) temperature. This warming trend is more statistically significant for T min. Although total ice loss at the six studied glaciers is considerable (5.48 km2), this varies both spatially (i.e. from glacier to glacier) and temporally. We attribute this variability to topographic controls such as glacier hypsometry and another non-climatic factor, i.e. varying degree of debris cover.","PeriodicalId":55112,"journal":{"name":"Geografiska Annaler Series A-Physical Geography","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85752068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Proglacial lake expansion and glacier retreat in Arctic Sweden 瑞典北极前冰期湖泊扩张与冰川退缩

IF 1.5 4区地球科学

Geografiska Annaler Series A-Physical Geography Pub Date : 2022-10-02 DOI: 10.1080/04353676.2022.2121999

A. Dye, R. Bryant, D. Rippin

{"title":"Proglacial lake expansion and glacier retreat in Arctic Sweden","authors":"A. Dye, R. Bryant, D. Rippin","doi":"10.1080/04353676.2022.2121999","DOIUrl":"https://doi.org/10.1080/04353676.2022.2121999","url":null,"abstract":"ABSTRACT Proglacial lakes have increased in number and extent in Arctic Sweden since the 1950s/1960s as glaciers have retreated dramatically. Interrogation of Rapid Eye imagery highlights that some lake terminating glaciers had substantial (>100 m) rates of retreat between 2010 and 2018, with one other land terminating glacier also retreating at a similar rate. However, analysis of a regional remote sensing time series suggests that proglacial lake formation in this period across the area has not been uniform. Despite glacier accumulation areas having similar maximum elevations (∼2,000 m) and similar alpine topography, proglacial lakes in the southern area (Sarek) were found to be significantly smaller than proglacial lakes in the northern area (Kebnekaise), which had smaller glaciers within corries and more prominent terminal moraines. Therefore, it cannot be assumed that proglacial lake formation will occur as glaciers retreat in response to elevated air temperature, particularly as only 33% of glaciers had proglacial lakes in their forefield. Thus, whilst it cannot be assumed that proglacial lakes will accommodate water currently held in glaciers, the 108 lakes mapped here present a substantial area (4.767 ± 0.377 km2) of fresh water that has not previously been included in the Global Lakes and Wetlands Database (GLWD). This inventory therefore provides an important dataset that can be used to underpin our understanding of the role of proglacial lakes within the hydrological system in this area of the Arctic.","PeriodicalId":55112,"journal":{"name":"Geografiska Annaler Series A-Physical Geography","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89436755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Geomorphological map of Breiðamerkursandur 2018: the historical evolution of an active temperate glacier foreland brei - or - amerkursandur 2018地貌图:温带活动冰川前陆的历史演变

IF 1.5 4区地球科学

Geografiska Annaler Series A-Physical Geography Pub Date : 2022-10-02 DOI: 10.1080/04353676.2022.2148083

S. Guðmundsson, D. Evans

{"title":"Geomorphological map of Breiðamerkursandur 2018: the historical evolution of an active temperate glacier foreland","authors":"S. Guðmundsson, D. Evans","doi":"10.1080/04353676.2022.2148083","DOIUrl":"https://doi.org/10.1080/04353676.2022.2148083","url":null,"abstract":"ABSTRACT We present a geomorphological map of Breiðamerkursandur, the outwash plain and foreland of Breiðamerkurjökull, an outlet glacier of the Vatnajökull ice cap, Southeast Iceland. We trace the glacial retreat of the glacier snout since its historical late nineteenth century Little Ice Age (LIA) maximum extent and the concomitant development of the glacial drainage pathways. Since the outlet began retreating from its LIA terminal position, a 120 km2 area of foreland has been exposed. The mapped geomorphology is a supplementary continuation of previous surveys in the 20th century, which highlighted the geomorphology and ice margin for the years 1945, 1965 and 1998. Since the 1998 landsystem map, Breiðamerkurjökull has retreated a further 0.6–4.0 km and 29 km2 has been exposed. This new map was prepared with the use of remote sensing, LiDAR DEM, a range of oblique aerial photographs and satellite images, written documents, in-field survey measurements and refined landform classifications to more accurately trace the position of the retreating snout and its outlet streams over the last 130 years.","PeriodicalId":55112,"journal":{"name":"Geografiska Annaler Series A-Physical Geography","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85516418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Frost-weathering control on the rate of late Quaternary landscape evolution, western flank of the Taebaek Mountain Range, Korea: a case of passive margin landscape evolution 太白山西侧晚第四纪景观演化速率的霜冻风化控制——以被动边缘景观演化为例

IF 1.5 4区地球科学

Geografiska Annaler Series A-Physical Geography Pub Date : 2022-10-02 DOI: 10.1080/04353676.2022.2121998

Dong-eun Kim, Y. Seong, J. Weber, Byung-Yong Yu

{"title":"Frost-weathering control on the rate of late Quaternary landscape evolution, western flank of the Taebaek Mountain Range, Korea: a case of passive margin landscape evolution","authors":"Dong-eun Kim, Y. Seong, J. Weber, Byung-Yong Yu","doi":"10.1080/04353676.2022.2121998","DOIUrl":"https://doi.org/10.1080/04353676.2022.2121998","url":null,"abstract":"ABSTRACT Passive continental margins can show anomalously high topography and exhibit a discrete steep escarpment, divide, and gentle slope from the exterior to the interior of the margin. Compared with active (i.e. convergent and strike-slip) tectonic regions, the processes and rates of change of high-altitude landscapes driven by tectonics and/or climate in tectonically inactive (passive) continental margins are poorly understood. We used 10Be catchment-wide denudation rates of fluvial sands (n = 29) collected in 17 catchments and 12 sub-catchments, as well as topographic analysis, to quantify the rate of landscape change along the western flank of the Taebaek Mountain Range (TMR). The denudation rates range from ∼20 to ∼70 mm/ka. These rates show no significant difference between upstream and downstream areas, implying that denudation is not (or is only negligibly) affected by deep-seated mass wasting processes and human impact. 10Be denudation rates in the northern TMR are 1.6 times higher than in the south. In addition, the relationship between denudation rates and geomorphic parameter values also differs from north to south. These observed spatial differences in the rate of denudation and geomorphic response can be explained by intense frost weathering rather than lithological control. Our quantitative analysis of denudation rates and topography suggests that southwest-directed migration of the range’s main divide occurs and that the range's western flank (low relief) is likely to be in a geomorphic state of quasi-equilibrium whereas the eastern flank (steep) still remains transient.","PeriodicalId":55112,"journal":{"name":"Geografiska Annaler Series A-Physical Geography","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79548411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The distribution and hydrological significance of intact rock glaciers in the north-west Himalaya 喜马拉雅西北部完整岩石冰川的分布及其水文意义

IF 1.5 4区地球科学

Geografiska Annaler Series A-Physical Geography Pub Date : 2022-07-03 DOI: 10.1080/04353676.2022.2120262

P. Chakravarti, V. Jain, V. Mishra

{"title":"The distribution and hydrological significance of intact rock glaciers in the north-west Himalaya","authors":"P. Chakravarti, V. Jain, V. Mishra","doi":"10.1080/04353676.2022.2120262","DOIUrl":"https://doi.org/10.1080/04353676.2022.2120262","url":null,"abstract":"ABSTRACT Intact rock glaciers are common periglacial landforms that occur in cold alpine mountains and are often considered indicators of alpine permafrost. They can be both active and inactive, but both have ice in them and can be hydrologically significant. Little is known about the distribution of the rock glaciers in the Himalaya at basin-scale and content of water that can be hydrologically significant during the water-stressed months. We have found 967 intact rock glaciers covering an area of 306 km2 in the river basins of Beas, Chenab, Ravi, Sutlej, and Yamuna. Out of these, around 77% are moraine derived and the rest are talus derived. Most of them occur in the elevation between 4000 and 4500 m having a slope of 10° to 30° with a westerly and south-westerly aspect. They start occurring from 3220 to 6206 m, in places with −10°C to 10°C mean monthly temperature and within 50–100 cm of average monthly precipitation. Their alignment suggests that these rock glaciers occur in the area with low to medium incoming solar radiations. These rock glaciers are generally found where the general rock types are low-grade metamorphic rocks and feldspar-rich intrusive granites occurring beyond the Main Central Thrust in the Higher Himalaya. Finally, we calculated about 8.5 billion m3 volume of water (ice water equivalent) stored in them, considering 60% of the volume of rock glaciers is ice.","PeriodicalId":55112,"journal":{"name":"Geografiska Annaler Series A-Physical Geography","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77187664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Landslide susceptibility assessment for warning of dangerous areas in Tan Uyen district, Lai Chau province, Vietnam 越南莱洲省丹渊县危险地区滑坡易感性预警评价

IF 1.5 4区地球科学

Geografiska Annaler Series A-Physical Geography Pub Date : 2022-07-03 DOI: 10.1080/04353676.2022.2091915

Lap Quoc Kieu, Gioi Van Ngo

引用次数: 3

Rock slope failure in the Lake District, NW England: an overview 英格兰西北部湖区岩质边坡破坏综述

IF 1.5 4区地球科学

Geografiska Annaler Series A-Physical Geography Pub Date : 2022-07-03 DOI: 10.1080/04353676.2022.2120261

P. Wilson, D. Jarman

{"title":"Rock slope failure in the Lake District, NW England: an overview","authors":"P. Wilson, D. Jarman","doi":"10.1080/04353676.2022.2120261","DOIUrl":"https://doi.org/10.1080/04353676.2022.2120261","url":null,"abstract":"ABSTRACT An inventory of 84 Rock Slope Failures (RSFs) (mean size 0.17 km2; total area 14.5 km2) is presented for the Lake District and Howgill Fells, northwest England. Most are developed on Ordovician and Silurian metavolcanics and metasediments, with a minority on Ordovician igneous intrusives. The RSFs are predominantly paraglacial in nature, a few are parafluvial. Rock slope deformations, rockslides, and rock avalanches occur in the proportions 46%/36%/18%. Some RSFs, or components thereof, pre-date the LGM, some are probably of Lateglacial Interstadial age, some may date from the YDS, and others are demonstrably of Holocene age. However, numerical ages are not available. A few RSF deposits have previously been mis-interpreted as lateral moraine, and either ice-cored (glacial) or protalus/talus-foot (periglacial) rock glaciers; some RSF cavities have been mis-interpreted as cirques, although they may be evolving into them. Spatial incidence of RSF is generally sparse; several areas lack evidence, but two clusters account for 56% of the population and 58% of the RSF area. Geological factors have greater influence over mode of failure than over spatial incidence; seismicity is unlikely to have been a prime cause. A Concentrated Erosion of Bedrock model could account for RSF clustering around glacially-breached cols and enlarging trough-heads, if petro-isostatic rebound is locally augmenting generic glacio-isostatic rebound stresses. RSF incidence in the Lake District can be seen as a microcosm of the Scottish Highlands pattern. The contribution of RSFs to landscape evolution and geodiversity in the area has been underplayed: some cases display bold impacts amenable to geo-interpretation.","PeriodicalId":55112,"journal":{"name":"Geografiska Annaler Series A-Physical Geography","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91296806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2