The sea level records since the start of the twentieth century show oscillations with many periodicities up to multi-decadal. The sea level may then change because of local factors such as subsidence or uplift, and global factors such as mass addition and thermal expansion of the oceans.
We use non-aligned data from the tide gauges of Aden, and the tide gauges of Mumbai and Karachi, to reconstruct the most likely pattern of sea levels for these three locations of the west Indian Ocean.
Linear and parabolic fittings of monthly average mean sea levels (MSL) from the different tide gauges of the three locations were carried out. Alignment of the different data sets based on historical information, similarity of patterns, and break point alignment was done.
Analysis of the tide gauge data of Aden, Yemen shows that without arbitrary alignment of data, Aden exhibits very stable sea level conditions like those in Mumbai, India and Karachi, Pakistan, without any significant sea level trend.
The reconstructed tide gauge records of Aden, Mumbai and Karachi are perfectly consistent with multiple lines of evidence from other key sites of the Indian Ocean including Qatar, Maldives, Bangladesh and Visakhapatnam. The sea levels have been stable since the start of the twentieth century in Aden similar to Karachi and Mumbai.
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Douglas BC (1991) Global sea level rise. J Geophys Res Oceans 96(C4):6981–6992
GLOSS (2004) “IOC/GLOSS/PERSGA/ISESCO technical mission to red sea tide gauge operating agencies 9–20 December 2004. http://www.gloss-sealevel.org/publications/documents/red_sea_visit_report_december_2004.pdf. Document downloaded 13 Sep 2017
GLOSS (2006) UNESCO Intergovernmental Oceanographic Commission (IOC) Global Sea Level Observing System (GLOSS) Technical Survey and Assessment Report, Aden, Republic of Yemen, 8–12th July 2006, document downloaded September 13, 2017
Mörner NA (2007) Sea Level changes and tsunamis, environmental stress and migration overseas: the case of the Maldives and Sri Lanka. In: Internationales Asien Forum. International Quarterly for Asian Studies (Vol. 38, No. 3/4, p. 353). Arnold Bergsträsser Institut
Mörner NA (2010) Sea level changes in Bangladesh new observational facts. Energy Environ 21(3):235–249
Mörner NA (2014) Sea level changes in the 19–20th and 21st centuries. Coordinates 10(10):15–21
Mörner N-A (2015a) Costal erosion and costal stability. In: Barens D (ed) Coastal and beach erosion. Processes, adaptation strategies and environmental impacts. Nova Science Publishers, Hauppauge, pp 69–82
Mörner N-A (2015b) The flooding of Ur in Mesopotamia in new perspectives. Archaeol Discov 3:26–31
Mörner NA (2016a) Coastal morphology and sea-level changes in Goa, India during the last 500 years. J Coast Res 33(2):421–434
Mörner N-A (2016b) Sea level changes as observed in nature. In: Easterbrook D (ed) Evidenced-based climate science, 2nd edn. Elsevier, Amsterdam, pp 219–231
NOAA (2017a) Center for operational oceanographic. http://productsandservicestidesandcurrents.noaa.gov/. Visited 13 Sep 2017
NOAA (2017b) Mean Sea Level Trends 485-001 Aden, Yemen. http://tidesandcurrents.noaa.gov/sltrends/sltrends_global_station.htm?stnid=485-001. Image downloaded 13 Sep 2017
Parker A (2016) Analysis of sea level in Karachi. N Concepts Global Tecton 4(1):120–126
Parker A, Ollier CD (2015) Sea level rise for India since the start of tide gauge records. Arab J Geosci 8(9):6483–6495
Pirazzoli PA (1986) Secular Trends of Relative Sea-Level (RSL) changes indicated by tide-gauge records. J Coast Res 1(1):1–26
PSMSL (2016) Extended tide gauge data. Hogarth 2014, Supplementary note 4: Indian Ocean (January 2016). http://www.psmsl.org/products/author_archive/Indian_Ocean_Tidal_Data_and_References_3d.pdf. Document downloaded 13 Sep 2017
PSMSL (2017) Permanent service for mean sea level. http://www.psmsl.org. Visited 13 Sep 2017
PSMSL (2017) ADEN. http://www.psmsl.org/data/obtaining/stations/44.php. Visited 13 Sep 2017
PSMSL (2017) ADEN—Metric data. http://www.psmsl.org/data/obtaining/met.monthly.data/44.metdata. Data downloaded 13 Sep 2017
PSMSL (2017) ADEN—RLR data. http://www.psmsl.org/data/obtaining/met.monthly.data/44.metdata. Data downloaded 13 Sep 2017
PSMSL (2017) MUMBAI. http://www.psmsl.org/data/obtaining/stations/43.php. Visited 13 Sep 2017
PSMSL (2017) MUMBAI—Metric data. http://www.psmsl.org/data/obtaining/met.monthly.data/43.metdata. Data downloaded 13 Sep 2017
PSMSL (2017) MUMBAI—RLR data. http://www.psmsl.org/data/obtaining/met.monthly.data/43.metdata. Data downloaded 13 Sep 2017
PSMSL (2017) Karachi. http://www.psmsl.org/data/obtaining/stations/204.php. Visited 13 Sep 2017
PSMSL (2017) Karachi—Metric data. http://www.psmsl.org/data/obtaining/met.monthly.data/204.metdata. Data downloaded 13 Sep 2017
PSMSL (2017) Karachi—RLR data. http://www.psmsl.org/data/obtaining/met.monthly.data/204.metdata. Data downloaded 13 Sep 2017
Sealevel.info (2017) Sealevel.info. http://www.sealevel.info. Visited 13 Sep 2017
Sealevel.info (2017) Mean sea level at Aden, Yemen (NOAA 485-001, PSMSL 44). http://www.sealevel.info/MSL_graph.php?id=Aden. Image downloaded 13 Sep 2017
Sealevel.info (2017) Mean sea level at Mumbai/Bombay, India (NOAA 500-041, PSMSL 43). http://www.sealevel.info/MSL_graph1.php?id=500-041. Image downloaded 13 Sep 2017
Sealevel.info (2017) Mean sea level at Karachi, Pakistan (NOAA 490-021, PSMSL 204). http://www.sealevel.info/MSL_graph1.php?id=490-021. Image downloaded 13 Sep 2017
Unnikrishnan AS (2007) Long term variability in the tide gauge records along the coasts of the north Indian Ocean. http://www.psmsl.org/products/commentaries/northern_indian_ocean.pdf. Downloaded 13 Sep 2017
Unnikrishnan AS, Shankar D (2007) Are sea-level-rise trends along the coasts of the north Indian Ocean consistent with global estimates? Global Planet Change 57(3):301–307
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Parker, A., Ollier, C.D. Is the Sea Level Stable at Aden, Yemen?. Earth Syst Environ 1, 18 (2017). https://doi.org/10.1007/s41748-017-0020-z
- Tide gauge records
- Discontinued measurements
- Alignment of data
- Sea-level rise
- Sea-level acceleration