Sentences with phrase «bucket measurements by»

These effects have been quantified; for example engine room intake (ERI) temperatures have been compared to bucket measurements by a number of studies.

Not exact matches

In particular, data gathered by ships recruited by Japan and the Netherlands (not shown) are biased in a way that suggests that these nations were still using uninsulated buckets to obtain SST measurements as late as the 1960s.

First of all McIntyre said, «If the benchmark is an all - engine inlet measurement system... all temperatures from 1946 to 1970 will have to be increased by 0.25 - 0.3 deg C since there is convincing evidence that 1970 temperatures were bucket (Kent et al 2007), and that this will be phased out from 1970 to present according to the proportions in the Kent et al 2007 diagram... Recent trends will be cut in half or more, with a much bigger proportion of the temperature increase occurring prior to 1950 than presently thought.»

Wouldn't it be the most reasonable to add 0.3 C degrees to any and all temperatures taken by bucket, and leave all intake measurements untouched?

Phase - out of buckets has been gradual, with 90 % of the measurements in 1970 still being by bucket, down to about 10 % today (just eyeballing the figure from Kent).

Now let's suppose that, instead of an abrupt and universal introduction of engine inlet measurements in 1941, we had a phased introduction so that 90 % of measurements in 1970 were still being made by buckets (as indicated by the information in Kent et al 2007) and that the 90 % phased down to 0 in 2000 linearly; and that half of the 10 % engine inlet introduction (5 % of the total) occurred in 1941 and the balance linearly between 1942 and 1970.

Now Kent et al 2007 have carried out a long overdue analysis of the metadata and reported that over 90 % of SST measurements in 1970 for which the measurement method was known were still being carried out by bucket, as shown in the following figure.

If 90 % of known SST measurements in 1970 were still being made by buckets, then the most reasonable estimate for the entire population is that 90 % of all SST measurements were still being made by buckets in 1970.

Ironically, the japanese measurements were also made by buckets.

Your statement that «Further, it was noted in a detailed study of the available meta data by Kent et al (2006)[10] that as late as 1970 fully 90 % of temperatures, where the meta - data stated the nature of the measurement, were still done by bucket.

Some measurements were made by lowering uninsulated buckets over the ship's side; these tend to produce colder temperatures, owing to the effects of evaporation once the bucket has left the water.

The adjustments are unlikely to significantly affect estimates of century - long trends in global - mean temperatures, [don't complain, the global warming was there before and after this round of adjustments] as the data before, 1940 and after the mid-1960s are not expected to require further corrections for changes from uninsulated bucket to engine room intake measurements [except by Karl (2015)-RSB-.

They assert that 30 % of the ships shown in existing metadata as measuring SST by buckets actually used engine inlet and proceed to reallocate the measurements on this assumption:

Were 100 % of measurements used taken by the British using buckets until some specific day, and the next day 100 % were taken by Americans using engine inlets?

It remained in climate literature despite obvious evidence that the majority of reported SST measurements in 1970 were being done by buckets.

While we noted that the WWII records for 1942 - 45 appeared to be dominated by engine - warmed intake data (a point common to all analyses), because 90 % of SST measurements with known provenance in 1970 were bucket rather than engine inlet, we postulated that «business as usual» had resumed after the war, with a resulting preponderance of bucket, rather than inlet data.

Steve: The issue is more that buckets experience cooling not experienced by engine inlet measurements, not that the engines warm the water.

We know that 90 % of all measurements in 1970 with (supposedly) known provenance were done by buckets (Kent et al 2007), while there was a turnover in proportion to about 90 % engine inlet and hull sensor by the 2000s.

of years ago, there was an excitement that it was partly explained by different methods of sea - going measurements of SST's varying from canvas bucket dips giving lower readings due to evaporation through to solid buckets, and engine cooling water inlet measurements.