In the future, rather than perpetuating the use of the clumsy phrase «
bucket adjustment» to cover a what is really a set of stepwise adjustment procedures, we could describe the present activity as the search for Windowed Marine De-trending procedures.
I noticed the post http://www.climateaudit.org/?p=2525 by googling «sst
bucket adjustment».
Therefore
the bucket adjustment methodology and the bucket adjustments themselves need to be prominently illustrated and adjusted in any SST estimate that purports to be scientific.
I would have thought that modelers would want to clearly understand the merits of HadCRU
bucket adjustment procedures before spending a lot of time and energy on modeling HadCRU temperatures in complicated models.
It starts the process of unwinding Folland's erroneous Pearl Harbour
bucket adjustment, an adjustment that has been embedded in HadSST for nearly 20 years.
To make an accurate estimate of the impact, it was necessary to include the effect of the new insulated
bucket adjustment — a point discussed at Climate Audit and which I would have included in any Climate Audit estimate.
Oceans also seem to have warmed, but there you get into
the bucket adjustment debate.
Declaring the meta data unreliable implies an added * uncertainty * of the size of the ERI -
bucket adjustment in the data.
So why does the NMAT adjustment get dropped in 1920 and switched in to
a bucket adjustment.
When we're discussing Parker's «demonstration» on UHI, remember that Parker's previous claim to fame was his co-authorship of the Folland and Parker
bucket adjustment see CA discussion and references here.
I'm not discussing the merits of the Folland canvas - wooden
bucket adjustment pre-1941, but the schedule of the implementation of the engine inlet adjustment.
It's pretty amazing that they think that the uncertainty for
bucket adjustment is less in 1865 than in 1938.
I don't think this issue is like a «SST
bucket adjustment» or a TOBS adjustment or an adjustment for lapse rate due to altitude change.
# 33, Thomas L — It seems to me that Gavin was highlighting the wild - eyed speculation about «
bucket adjustments» in the blogosphere.
data has
no bucket adjustments, no «guessed» TOBS adjustments, no creating data from thin air, no dogmatic, policy - driven bias and it agrees with the independent sonde data.
Steve McIntyre also posts on this, entitled «
Bucket adjustments: more bilge from RealClimate http://climateaudit.org/2011/07/11/more-misrepresentations-from-realclimate/
CA readers are aware that I discussed
bucket adjustments on a number of occasions long before Thompson et al 2008, in particular, questioning the absurd IPCC assumption that all SST measurements switched from buckets to engine inlet on the -LSB-...]
By the way, do the data used for the temp anomaly in that video have
any bucket adjustments for the ocean and any location adjustments for the land?
The coordinating lead authors of the section discussing Folland's
bucket adjustments are Trenberth and Jones.
The MOHSST5 (Atlas 7) data, in which the Folland and Parker
bucket adjustments are already embedded, was used in the Kaplan's «optimal estimation», which says:
To stay relevant — I am supremely indifferent to
bucket adjustments in the lack of instrumental data on the oceans.
IPCC AR4 does not contain any mention of uncertainty attached to
bucket adjustments, although that was an easily identified uncertainty that had been discussed here on several occasions.
Despite Schmidt's sniggering, it seems to me that I was entirely correct to raise the issue of
bucket adjustments and correctly foresaw the direction of required adjustments long before the publication of Thompson et al..
Well, here we all are once again, discussing
bucket adjustments.
CA readers are aware that I discussed
bucket adjustments on a number of occasions long before Thompson et al 2008, in particular, questioning the absurd IPCC assumption that all SST measurements switched from buckets to engine inlet on the day after Pearl Harbour.
Steve: Geoff,
the bucket adjustments have been an integral aspect to the global temperature history.
Climate Audit on
Bucket Adjustments I've done a number of posts on
bucket adjustments — which, as I've observed on a number of occasions — is a much under - discussed topic.
I've urged attention to
bucket adjustments for many years and am glad that Hadley Center have re-visited this — it's now six years since the problems of the WW2 adjustments were first discussed at CA.
Steve, I think the first time i heard about problems with
the bucket adjustments and dip in SST mid century was in 2005, I think Mike McCracken told me about this.
NASA blogger Gavin Schmidt has once again fabricated claims against Climate Audit's posts on
bucket adjustments.
-LSB-...] and Engines, The Team and Pearl Harbor,
Bucket Adjustments: More Bilge from RealClimate, Rasmus, the Chevalier and
Bucket Adjustments, Did Canada switch from Engine Inlets in 1926 Back to -LSB-...]
My original issue with
bucket adjustments was that they are quantitatively as large as the trend being measured and rest on a rather frail historic foundation.
As I observed in 2005,
the bucket adjustments are as large as the trend being measured.
This episode definitely confirms my very first point on
these bucket adjustments: whenever the adjustments are as as large the effect being measured, then there needs to be a replicable description and careful aassessment of all aspects of the adjustment process.]
re
bucket adjustments I just can not believe that data from such an uncontrolled method could possibly be taken too seriously, at least to establish SST on a global basis.
The absurdity of Team
bucket adjustments had been discussed in two early CA posts (here, here, here).
Bucket adjustments pretty much drop from sight in AR4.
Webster, for same time, has been very interested in the post-1950 blip and the potential impact of
bucket adjustments.
This episode definitely confirms my very first point on
these bucket adjustments: whenever the adjustments are as as large the effect being measured, then there needs to be a replicable description and careful assessment of all aspects of the adjustment process.
And far from the initial effort to show the potential effect being risible as Schmidt says, it showed that
bucket adjustments might very well «matter» and my most recent thoughts seem rather prescient in retrospect.
As I had surmised in 2007, eliminating the erroneous handling of World War II
bucket adjustments has a large impact on the previously - believed in decline in temperatures in the 1950s and 1960s.
Very early in CA history (for example here), I had pointed out the critical dependence of SST trends on «
bucket adjustments».
The bucket adjustments were developed by Folland.
In December 2007, still long before Thompson et al, I discussed
bucket adjustments again, noting the impact of the Folland adjustments on earlier work (referring to Paltridge and Woodruff 1981).
Here is what Lamb said about
bucket adjustments in «Climate: Present, Past, and Future Vol.II» page 506 footnote 1:
Not exact matches
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