Monitoring of landslides in the Brda river valley in Koronowo (Polish Lowlands)

Zabuski, Lesław; Świdziński, Waldemar; Kulczykowski, Marek; Mrozek, Teresa; Laskowicz, Izabela

doi:10.1007/s12665-015-4025-3

Cited by 19 publications

(12 citation statements)

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“…A situation similar to that on the Central Landslide in 2010/2011 was observed in Koronowo, located about 100 km NW of Dobrzyń (Zabuski et al 2015). The landslide studied there has a similar geomorphological and geological setting like the Central Landslide.…”

Section: Causes Of Periodical Landslide Acceleration On Slopes Of Ressupporting

confidence: 64%

Landslide development at the shores of a dam reservoir (Włocławek, Poland), based on 40 years of research

2015

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This article presents results of our 40-year research on dynamics of a deep rotational landslide developed in clay deposits. The landslide is located in a lowland, within the shoreline of Włocławek Reservoir, with little water level variation, in Dobrzyń on the Vistula (northern Poland). It is an old landslide, which was active also before the construction of the reservoir. Our research was initiated in 1970, i.e. when the river Vistula was dammed there. Currently the landslide covers about 20,000 m 2 and has a volume of about 160,000 m 3 . During the 40 years, 3 periods of increased landslide activity were observed. The first, conspicuously, nearly 40 % increase in the rate of movements within the Central Landslide was initiated in the early 1970s and lasted till the early 1980s. It coincided with the initial filling of the reservoir and the first years of exploitation of Włocławek Reservoir. The increase in landslide dynamics was a direct effect of hydrological and morphological changes associated with the damming of the river. The next 2 periods of increased landslide activity occurred: in 2001/2002 and 2010/2011. The latter was the most spectacular displacement within the Central Landslide. It was recorded between December 2010 and February 2011, and reached 10.0-19.4 m, after unusually long-lasting, heavy rainfall in the summer and autumn of 2010, followed by snowmelt and unfavourable changes in air temperature. Since March 2011, no movements within the landslide have been recorded.

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Section: Causes Of Periodical Landslide Acceleration On Slopes Of Ressupporting

confidence: 64%

Landslide development at the shores of a dam reservoir (Włocławek, Poland), based on 40 years of research

2015

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“…Dense PWV fields also enable Global Navigation Satellite Systems (GNSS) Network Real-time Kinematic (RTK) observations to be corrected for signal delays due to water vapor on propagating from space through the Earth's neutral atmosphere ("troposphere") to a ground-based receiver. Such corrections are essential for centimeter-level positioning, particularly heights, and enable (subject to sufficient GNSS base station coverage) Network RTK to be used for geophysical and engineering applications that have normally only used local base station RTK, such as river channel mapping [e.g., Brasington et al, 2003], glacier flow and debris mapping [e.g., De Paoli and Flowers, 2009], coastal erosion [e.g., Lee et al, 2013], crustal deformation [e.g., Genrich and Bock, 2006] and structural [e.g., Im et al, 2013] monitoring, precision farming [e.g., Pérez-Ruiz et al, 2011, embankment instability, and landslide monitoring [e.g., Gili et al, 2000;Zabuski et al, 2015]. oceanic areas with Sun glint, and/or above clouds over both land and ocean [Gao and Kaufman, 2003].…”

Section: Introductionmentioning

confidence: 99%

Generation of real‐time mode high‐resolution water vapor fields from GPS observations

2017

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Pointwise GPS measurements of tropospheric zenith total delay can be interpolated to provide high‐resolution water vapor maps which may be used for correcting synthetic aperture radar images, for numeral weather prediction, and for correcting Network Real‐time Kinematic GPS observations. Several previous studies have addressed the importance of the elevation dependency of water vapor, but it is often a challenge to separate elevation‐dependent tropospheric delays from turbulent components. In this paper, we present an iterative tropospheric decomposition interpolation model that decouples the elevation and turbulent tropospheric delay components. For a 150 km × 150 km California study region, we estimate real‐time mode zenith total delays at 41 GPS stations over 1 year by using the precise point positioning technique and demonstrate that the decoupled interpolation model generates improved high‐resolution tropospheric delay maps compared with previous tropospheric turbulence‐ and elevation‐dependent models. Cross validation of the GPS zenith total delays yields an RMS error of 4.6 mm with the decoupled interpolation model, compared with 8.4 mm with the previous model. On converting the GPS zenith wet delays to precipitable water vapor and interpolating to 1 km grid cells across the region, validations with the Moderate Resolution Imaging Spectroradiometer near‐IR water vapor product show 1.7 mm RMS differences by using the decoupled model, compared with 2.0 mm for the previous interpolation model. Such results are obtained without differencing the tropospheric delays or water vapor estimates in time or space, while the errors are similar over flat and mountainous terrains, as well as for both inland and coastal areas.

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“…As these land slides de mol ished as sets im por tant for the com mune, so they were sub jected to more de tailed in ves tiga tions. As sess ment of a rate and na ture of de for ma tions was pos si ble ow ing to in stru men tal mon i tor ing in stalled on these hot-spot land slides (Zabuski et al, 2015) and gave the base for find ing an ap pro pri ate sta bi lis ing treat ment. For sound risk reduc tion, fea si bil ity of tasks ad dressed to par tic u lar hot-spots was as sessed by com par i son of costs C de not ing ex pen di tures needed for re me dial mea sures to ben e fits B re sult ing from avoid ing losses re lated to a po ten tial slide.…”

Section: Landslide Risk In the Study Areamentioning

confidence: 99%

Landslide susceptibility and risk assessment in a non-mountainous region – a case study of Koronowo, northern Poland

Mrozek

Laskowicz

Zabuski

et al. 2016

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1 Pol ish Geo log i cal In sti tute-Na tional Re search In sti tute, Carpathian Branch, Skrzatów 1, 31-560 Kraków, Po land 2 Pol ish Acad emy of Sci ences, In sti tute of Hy dro-En gi neer ing, Kooecierska 7, 80-328 Gdañsk, Po land Mrozek, T., Laskowicz, I., Zabuski, L., Kulczykowski, M., OEwidziñski, W., 2016. Land slide sus cep ti bil ity and risk as sess ment in a non-moun tain ous re gion -a case study of Koronowo, north ern Po land. Geo log i cal Quar terly, 60 (3): 758-769, doi: 10.7306/gq.1307The study deals with land slide threats in a low-re lief re gion which ex em pli fies an area rarely per ceived as prone to such geohazards. Ac tu ally, in the gently un du lated land scape in the vi cin ity of Koronowo at the Brda River (South Pom er a nian Lake Dis trict, north ern Po land) in ten si fied landsliding was ob served in the re cent years. The field map ping and ex am i na tion of air pho tos showed that en dan gered ter rains are fairly ex ten sive and can not be lim ited to ini tially iden ti fied slope fail ure in cidences (hot-spots). The de vised land slide sus cep ti bil ity and haz ard map is an out come of pre dic tive mod el ling us ing em pir ical like li hood ra tio func tion (LR) with re spect to seven ev i den tial lay ers: el e va tion, slope an gle, slope as pect, flow ac cu mu la tion, sur face de pos its, depth to gla cial raft, land cover as well as the land slide scars. The val ues of po ten tial losses were cal cu lated based on the mapped land-use cat e go ries and cur rent mar ket prices of es tates and ser vices. The fi nal map, which re sulted from com bin ing land slide haz ard with po ten tial losses, shows dam age pro pen sity in a spa tial scale of the town sur round ings. It is meant as a sup port ive tool for de ci sion-mak ing with re gard to al lo cat ing funds for sta bi li za tion measures or plan ning place ment of new in vest ments. On this back ground, sta bi li za tion so lu tions for se lected sites are as sessed in a cost-ben e fit con text.Key words: land slide haz ard, risk eval u a tion, non-moun tain ous land scape, land-use plans, Brda val ley.

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Monitoring of landslides in the Brda river valley in Koronowo (Polish Lowlands)

Cited by 19 publications

References 1 publication

Landslide development at the shores of a dam reservoir (Włocławek, Poland), based on 40 years of research

Landslide development at the shores of a dam reservoir (Włocławek, Poland), based on 40 years of research

Generation of real‐time mode high‐resolution water vapor fields from GPS observations

Landslide susceptibility and risk assessment in a non-mountainous region – a case study of Koronowo, northern Poland

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