Testing the Quality of Sea-Level Data Using the GECCO Adjoint Assimilation Approach

Author(s):  
Martin G. Scharffenberg ◽  
Armin Köhl ◽  
Detlef Stammer
2016 ◽  
Vol 38 (1) ◽  
pp. 349-383 ◽  
Author(s):  
Martin G. Scharffenberg ◽  
Armin Köhl ◽  
Detlef Stammer

2019 ◽  
Vol 65 (1) ◽  
pp. 15-33 ◽  
Author(s):  
G. N. Voinov ◽  
A. A. Piskun

Sea level observations obtained in various expeditions since 1936, as well as those made at the polar station on Cape Kamenny (the Ob Bay) from 1952 to 1994 were subjected to treatment and harmonic analysis using the least squares method (AARI version).The aim of the work was to assess the quality of hourly and 6-hourly intervals series of sea level data and to bring these data to uniform rows for the subsequent study of tidal and surge waves. As a result of this analysis, 6-hourly interval observations of 1952–1961 were considered of low quality and not suitable for further consideration in the work. Bringing 6-hourly interval observations for 1977–1994 to uniform rows was carried out first with the control of the height basis and binding to the Baltic system of heights, and then with the help of the tide calibration method the final cast was made. In the area of tidal fluctuations of the level, erroneous information about the tide, obtained during the treatment of observations for 1936, which were placed in the tide tables for 1941, was revealed. New average estimates of harmonic constants for the summer period were proposed. The study of surges of level is based on uniform series, as well as residual ones (observations minus predictions). At the same time, the tide calculation (prediction) was made according to the program developed at AARI for the average monthly values of harmonic constants (12 sets of tides lists in the annual cycle) with the inclusion of long-period tides. Statistical quantitative characteristics of non-periodic level fluctuations were obtained for the total and residual series of observations. They are calculated on a unique hourly series for the years 1947–1948. And 6-hourly interval data for 1977–1994. For the estimation of surges, the level above 5 % of estimation was used, and the drifts were distinguished by the level below 95 % of estimation. Relationships are obtained between the duration and rate of growth of the level during surges, as well as the decline and rise of the level during drifts.


2018 ◽  
Author(s):  
Benjamin P. Horton ◽  
◽  
Ian Shennan ◽  
Sarah L. Bradley ◽  
Niamh Cahill ◽  
...  

2021 ◽  
Vol 10 (11) ◽  
pp. 2314
Author(s):  
Mikolaj Przydacz ◽  
Marcin Chlosta ◽  
Piotr Chlosta

Objectives: Population-level data are lacking for urinary incontinence (UI) in Central and Eastern European countries. Therefore, the objective of this study was to estimate the prevalence, bother, and behavior regarding treatment for UI in a population-representative group of Polish adults aged ≥ 40 years. Methods: Data for this epidemiological study were derived from the larger LUTS POLAND project, in which a group of adults that typified the Polish population were surveyed, by telephone, about lower urinary tract symptoms. Respondents were classified by age, sex, and place of residence. UI was assessed with a standard protocol and established International Continence Society definitions. Results: The LUTS POLAND survey included 6005 completed interviews. The prevalence of UI was 14.6–25.4%; women reported a greater occurrence compared with men (p < 0.001). For both sexes, UI prevalence increased with age. Stress UI was the most common type of UI in women, and urgency UI was the most prevalent in men. We did not find a difference in prevalence between urban and rural areas. Individuals were greatly bothered by UI. For women, mixed UI was the most bothersome, whereas for men, leak for no reason was most annoying. More than half of respondents (51.4–62.3%) who reported UI expressed anxiety about the effect of UI on their quality of life. Nevertheless, only around one third (29.2–38.1%) of respondents with UI sought treatment, most of whom received treatment. Persons from urban and rural areas did not differ in the degrees of treatment seeking and treatment receiving. Conclusion: Urinary incontinence was prevalent and greatly bothersome among Polish adults aged ≥ 40 years. Consequently, UI had detrimental effects on quality of life. Nonetheless, most affected persons did not seek treatment. Therefore, we need to increase population awareness in Poland about UI and available treatment methods, and we need to ensure adequate allocation of government and healthcare system resources.


2015 ◽  
Vol 11 (4) ◽  
pp. 847-874 ◽  
Author(s):  
EVGUENIA BESSONOVA ◽  
KSENIA GONCHAR

AbstractThis paper addresses the link between the strong inflow of FDI into Russia in the 2000s and its weak institutions, using plant-level data across subnational regions. The findings imply that investors have responded positively to improved quality of institutions in certain regions, which offered a combination of wealth, skills and good infrastructure. High development levels in host regions helped to bypass some institutional shortcomings. Investors from source countries exhibiting comparable institutional environment appeared to be more immune to political conflict. Round-trip investors reacted to institutional determinants in almost the same manner as genuine investors, except for tolerance to labor market imperfections.


2017 ◽  
Vol 32 (7) ◽  
pp. 957-975 ◽  
Author(s):  
Robin Edwards ◽  
W. Roland Gehrels ◽  
Anthony Brooks ◽  
Ralph Fyfe ◽  
Katie Pullen ◽  
...  

1992 ◽  
Vol 29 (11) ◽  
pp. 2418-2425 ◽  
Author(s):  
A. Mark Tushingham

Churchill, Manitoba, is located near the centre of postglacial uplift caused by the Earth's recovery from the melting of the Laurentide Ice Sheet. The value of present-day uplift at Churchill has important implications in the study of postglacial uplift in that it can aid in constraining the thickness of the ice sheet and the rheology of the Earth. The tide-gauge record at Churchill since 1940 is examined, along with nearby Holocene relative sea-level data, geodetic measurements, and recent absolute gravimetry measurements, and a present-day rate of uplift of 8–9 mm/a is estimated. Glacial isostatic adjustment models yield similar estimates for the rate of uplift at Churchill. The effects of the tide-gauge record of the diversion of the Churchill River during the mid-1970's are discussed.


IoT ◽  
2021 ◽  
Vol 2 (1) ◽  
pp. 17-32
Author(s):  
Philip Knight ◽  
Cai Bird ◽  
Alex Sinclair ◽  
Jonathan Higham ◽  
Andy Plater

A low-cost “Internet of Things” (IoT) tide gauge network was developed to provide real-time and “delayed mode” sea-level data to support monitoring of spatial and temporal coastal morphological changes. It is based on the Arduino Sigfox MKR 1200 micro-controller platform with a Measurement Specialties pressure sensor (MS5837). Experiments at two sites colocated with established tide gauges show that these inexpensive pressure sensors can make accurate sea-level measurements. While these pressure sensors are capable of ~1 cm accuracy, as with other comparable gauges, the effect of significant wave activity can distort the overall sea-level measurements. Various off-the-shelf hardware and software configurations were tested to provide complementary data as part of a localized network and to overcome operational constraints, such as lack of suitable infrastructure for mounting the tide gauges and for exposed beach locations.


2021 ◽  
Vol 30 (4) ◽  
pp. 323-343
Author(s):  
Matthew Thomas Clement ◽  
Chad L. Smith ◽  
Tyler Leverenz

Much sustainability scholarship has examined the environmental dimensions of subjective and objective well-being. As an alternative measure of human well-being, we consider the notion of quality of life and draw on a framework from the sustainability literature to study its association with ecological impact, specifically the carbon footprint. We conduct a quantitative analysis, combining zip-code level data on quality of life and the carbon footprint per household for the year 2012 across the continental United States ( n=29,953). Findings consistently show a significant, negative association between quality of life and the carbon footprint. Our findings point to the potential advantages of utilizing robust objective measures of quality of life that extends beyond economic well-being and life expectancy alone. Furthermore, our findings question the conventional wisdom that sustainability requires sacrifices, while suggesting opportunities for how increased levels of sustainability may be achieved while retaining high levels of quality of life.


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