A. Parker's research while affiliated with James Cook University and other places

Publications (17)

Article
There are two related measures of sea level, the absolute sea level, which is the increase in the sea level in an absolute reference frame, and relative sea level, which is the increase in sea level recorded by tide gauges. The first measure is a rather abstract computation, far from being reliable, and is preferred by activists and politicians for...
Article
Full-text available
The Atlantic Meridional Overturning Circulation (AMOC) is part of the great ocean “conveyor belt” that circulates heat around the globe. Since the early 2000s, ocean sensors have started to monitor the AMOC, but the measurements are still far from accurate and the time window does not permit the separation of short term variability from a longer te...
Article
CO2 emission and fuel consumption of passenger cars is now assessed by using a simplistic procedure measuring the emission during a test performed without any control of the fuel properties and computing the fuel consumption through an unsophisticated formula. As pump gasoline and diesel fuels are refinery products mixture of many different hydroca...
Article
[Extract] Yihdego et al. (2015) claim that many lakes in Western Victoria, in particular Lake Purrumbete, have been dry, or at their lowest level in recorded history, because of global warming. However, measured rainfall around Lake Purrumbete has been fairly stable and actually increasing, while the temperatures have been similarly stable since th...
Article
The paper by Peterson and Li (Environ Earth Sci, doi:10.1007/s12665-014-3498-9, 2014) assumes sea level rise induced by global warming is real, and sea levels may rise by 2100 m, and they go on to derive ecological conclusions from this. We show here that sea levels are rising slowly, both worldwide and in North Carolina, based on real tide gauge d...
Article
The Greenhouse Gases Observing Satellite (GOSAT) satellite provides the first measured CO2 flux data that can be used to determine if a region is sequestering or emitting CO2. Results differ considerably from the popular accepted view. In the specific case of Australia, the observational data show this country is a top sequestering and not a top em...
Article
The recent paper by Bellfiore, Ghezzo, Tagliapietra and Umgiesser [1] gives us the opportunity to discuss the relative sea level rise in Venice (Venezia). They accept that the Venetian sea level rise will be part of a global rise caused by ocean thermal expansion and melting of icecaps caused in turn by global warming induced by anthropogenic carbo...
Article
This recent paper by Marotzke and Forster [1] has received media attention because it claims to have shown that the recent pause in surface temperature rise was the result of natural variability, and that climate models are not systematically overestimating the global warming. Nicholas Lewis [2] has already commented about the serious statistical e...
Article
A better understanding of the future climate pattern developments in the Arctic may only follow a better reconstruction of the past patterns of natural oscillations and the determination of the forcing and the resulting oscillations occurred in the climate parameters over different time scales. The proposed information for the past demonstrates the...
Article
GRACE does not measure any ice sheet thickness but only gravity. Similarly to the computation of the global mean sea level (GMSL), the computation of the ice sheet thickness, follows a large number of assumptions. As a result, the actual inaccuracy of the Antarctic ice sheet thickness computation is much larger than any trend proposed. In other wor...
Article
We previously discussed as the warming of Australia evidenced by the Australian Climate Observations Reference Network (ACORN) data set is artificially created by the arbitrary correction of the truly measured temperatures making cooler the temperatures of the past. Gillham has freshly brought to the attention of the scientific community two old da...
Article
The global mean sea level (GMSL) changes derived from modelling do not match actual measurements of sea level and should not be trusted. Compilations of individual tide gauges of sufficient quality and length provide much more reliable information. The present work is a contribution towards a better understanding of the observed of sea levels in In...
Article
A proper coastal management requires an accurate estimation of sea level trends locally and globally. It is claimed that the sea levels are rising following an exponential growth since the 1990s, and because of that coastal communities are facing huge challenges. Many local governments throughout Australia, including those on the coast, have respon...

Citations

... They can be compared to the commensurable periods of the Jovian planets acting on the Earth and Sun as proposed by [41]. The combination of the revolution periods of Neptune (165 yr), Uranus (84 yr), Saturn (29 yr) and Jupiter (12 yr) and several commensurable periods makes additional pseudo-cycles of 60 and 20 yr appear in sunspots [32,39] as well as in a number of terrestrial phenomena [31,32,41,45,46,49,51,58], particularly in sea level [55,[73][74][75][76]. It is therefore not a surprise to find Jovian periods in GSLTG. ...
... While early studies suggested a significant decline in AMOC strength between 2004 and 2012 Smeed et al., 2014), these conclusions appeared premature with recent observations indicating a recovery Smeed et al., 2018). The limited data have made it hard to formulate firm statements about the natural variability of the AMOC or the significance of its recent trends (Parker & Ollier, 2016), and these remain open questions. ...
... This breakdown in the apparent temperature-sea ice relationship for the pre-satellite estimates has been noted by others (e.g. Semenov andLatif 2012, Parker andOllier 2015). For instance, Semenov and Latif (2012) argued that the winter sea ice extent variability implied by the Walsh dataset is much less than would be expected from the observed temperature trends. ...
... The gages at Santo Stefano and the Arsenal were used until 1911 and 1917, respectively. In 1906, the Punta della Salute gage started its operation [24]. It was first located on the Grand Canal near Santa Maria della Salute Cathedral, and in 1923, it was moved to the Giudecca Canal. ...
... The latest concentration measured by the Mauna Loa Observatory, Hawaii (www.co2.earth) is 409.23 ppm. This is a local, not a global measure [27][28][29], and a likely overrating of the global average CO2 concentration, as Mauna Loa is one active shield volcano of five volcanoes that form the Island of Hawaii, historically considered the largest volcano on Earth. CO2 concentrations have a time and space variability [27][28][29], that is often neglected. ...
... Parker (2015) criticises the modelling by Yihdego et al. (2015) of future fluctuations in the level of Lake Purrumbete because we used climate change predictions that include global warming due to anthropogenic carbon dioxide emissions. Parker (2015) analysed Bureau of Meteorology data for weather stations in the area around Lake Purrumbete and states that measured rainfall in this region has been generally stable while exhibiting interannual and multi-decadal oscillations, and recently there has been a small increase. ...
... Their technique is similarly to that of another paper [24] on the Antarctic ice thickness, but which reached diametrically opposite conclusions. That paper [24] is critically reviewed in [25]. ...
... It is important to note as the sea levels worldwide are not rising everywhere, but rising or falling, and the accelerations are locally positive and negative to make globally zero acceleration showing great stability. A clear indication of this stability are the similar relative rates of rise of sea levels from one survey to the other, either the worldwide surveys by PSMSL (2015) or the United States surveys by the National Oceanic and Atmospheric Administration NOAA (NOAA 2015), with negligible differences however in the sign of reducing rates of rise as commented in Parker and Ollier (2015). ...
... Here we want to reconstruct the 20 th century warming in the centre of Australia, where according to the local Bureau of Meteorology (BOM) there has been the largest warming in Australia. Figure However, according to independent studies such as Boretti, 2013;Mearns, 2015;Parker, 2014;Parker, 2015;Parker, 2016;Parker & Ollier, 2015;Parker & Ollier, 2017, there has been no warming at all. ...
... The flaws of the IPCC AR5 Chapter 13 are linked to playing around three important aspects of sea levels measurements and computations. The first aspect is that the oscillating behaviour of the sea levels, with many important periodicities of quasi-60 years and about 20 years detected in many areas, does not allow inferring any realistic trend if enough data of sufficient quality and length is not made available (Parker 2013b, c, d, e, 2014a, b, c, Parker et al. 2013, Parker, Watson 2013 ). Computation of trends by linear regression are unreliable when the tide gauge has been recording since less than 60–70 years, when there are significant gaps in the tide gauge record, or when there are perturbing events in the recording making difficult the coupling of the data. ...