Sentences with phrase «tropical sst»

Nevertheless, the fast glacier recession in the tropics seems at first sight to be consistent with an increase in tropical freezing heights of 100 m over the period 1970 to 1986 as reported by Diaz and Graham (1996), corresponding to an increase of 0.5 °C at tropical high mountain levels, which they also link to increases in tropical SST since the mid-1970s (Figure 2.10).

Doing so would also require establishing that the long - term evolution of tropical SST patterns in coupled GCMs forced by increasing greenhouse gas concentrations is realistic, notwithstanding that CMIP5 historical simulations do not match the observed warming pattern.

Globally, estimates of the potential destructiveness of hurricanes show a signifi cant upward trend since the mid-1970s, with a trend towards longer lifetimes and greater storm intensity, and such trends are strongly correlated with tropical SST.

The estimated lack of tropical warming is a result of basing tropical SST reconstructions on marine microfaunal evidence.

The increase comes about because of longer storm lifetimes and greater storm intensity, and the index is strongly correlated with tropical SST.

That is tropical SST imbalance at the margins, 20 - 30 South minus 20 - 30 North.

This is quite evident in the Palle and Laken graph shown above consisting of ISCCP - FD and MODIS data cross validated with tropical SST.

The extratropics may also contribute to the tropical SST changes via an «atmospheric bridge», confounding the simple interpretation of a tropical origin (Barnett et al., 1999; Vimont et al., 2001).

I have done some sensitivity tests wrt the tropical SST (will be in the final LGM reconstruction paper).

The tropical troposphere hot spot responds to tropical SST and thus the missing hot spot is a separate problem.

The inconsistency between models and observations for tropical SST is even stronger than for global temperature — casting further doubt on IPCC's attribution of the global inconsistency to «natural variability».

But my reply was to Erl's specific question about tropical SST anomalies and NINO3.4 SST anomalies.

Have you checked the relationships between ENSO 3.4 SST anomalies, tropical Pacific SST anomalies and global tropical SST anomalies?

Looks to me as though Scaled NINO3.4 SST anomalies and the Tropical SST anomalies for the Globe and Pacific all match up quite well.

The CMIP3 models show a 1979 — 2010 tropical SST trend of 0.19 °C per decade in the multi-model mean, much larger than the various observational trend estimates ranging from 0.10 °C to 0.14 °C per decade (including the 95 % confidence interval, (Fu et al., 2011)-RRB-.

When considering a global tropical SST data - constraint, an average tropical cooling of about 2.5 °C would have to be considered to constrain the same ΔT 2x range (as derived from tropical Atlantic).

To estimate the uncertainty range (2σ) for mean tropical SST cooling, we consider the error contributions from (a) large - scale patterns in the ocean data temperature field, which hamper a direct comparison with a coarse - resolution model, and (b) the statistical error for each reconstructed paleo - temperature value.

In the Enric Palle and Ben Laken cloud graph linked to tropical SST is used to cross calibrate ISCCP - FD and MODIS data.

«The complete mechanism for Arctic stratospheric ozone modulation of tropical SST still deserves thorough analysis... It is one subject of our next study,» said Li.

For a tropical SST of 300 K, 4σ (SST) 3 ~ 6.1 W m - 2 K - 1.

In the light of Kossin 2007 (or previous critics on data accuracy like Landsea 2006), we can just say that there's no consensus for the moment and that the statement still needs to be confirmed, before any assumption on tropical SST increase / intensity and GW / tropical SST increase.

A tropical SST link would explain why the signal is strongest with a 10 to 20 year lag of the long - term changes (Waple et al, 2001), but the noise in the NAO record could mean that you only see significant changes after long term averaging.

Basically, although everyone acknowledges that there are data problems early in the record, it seems clear that there has been a global rise of the most intense hurricanes over the last 30 years and the most obvious explanation is that this is related to the contemporaneous increases in tropical SST in each basin.

Scenarios for future global warming show tropical SST rising by a few degrees, not just tenths of a degree (see e.g. results from the Hadley Centre model and the implications for hurricanes shown in Fig. 1 above).

Tropical SST trends in HadISST are 0.1 deg C / dec, HadCRUT3v 0.11 deg C / dec, RSS T2LT is 0.17 deg C / dec.

However, the regional impact of the tropical SST distribution associated with the «hiatus» has been significant.

Predictions related to the impact of pinatubo, post 1984 trends, the «satellite cooling» mismatch, lgm tropical sst, water vapor increases, ocean heat content etc have all been made and verified within a short time period.

In particular, it is not self - evident that future Antarctic climate change may be partially slaved to the spatial structure of tropical SST warming.

Globally, estimates of the potential destructiveness of hurricanes show a significant upward trend since the mid-1970s, with a trend towards longer lifetimes and greater storm intensity, and such trends are strongly correlated with tropical SST.

There has been some (misguided) history of using the observed histogram of tropical SSTs (apped at 30 Cish) and the fact that clouds form in such regimes as an indication of stabilizing feedbacks in the tropics.

The publication this week of a comprehensive paper by Santer et al provides an opportunity to assess the key middle question — to what can we attribute the relevant changes in tropical SSTs?

From here we are led to the statement: «as tropical SSTs have increased in past decades, so has the intrinsic destructive potential of hurricanes».

A more convincing conclusion from the graph is that «as tropical SSTs have increased in past decades, so has the PDI».

This suggests that hurricanes may indeed become more destructive (1) as tropical SSTs warm due to anthropogenic impacts.

As tropical SSTs have increased in past decades, so has the intrinsic destructive potential of hurricanes.

In that paper, Kerry and Mike show the combination of global SSTs and regional aerosol forcing are a good predictor of Atlantic tropical SSTs and thereby Atlantic TC counts, and that there is very little Atlantic tropical SST variation left for a multi-decadal cycle to explain.

There is observational evidence for an increase of intense tropical cyclone activity in the North Atlantic since about 1970, correlated with increases in tropical SSTs.

We note however that we have not separated the relative roles of multidecadal variability and externally forced climate change, nor fully discriminated the relative roles of tropical SSTs and extratropical SSTs and sea ice in explaining the circulation trends at high Southern latitudes.

Both terrestrial and marine palaeoclimate proxies (Thompson, 1991; Dowsett et al., 1996; Thompson and Fleming, 1996) show that high latitudes were significantly warmer, but that tropical SSTs and surface air temperatures were little different from the present.

- the AMO is reflected strongly in the tropical SSTs of the North Atlantic (Delworth and Mann 2000)-- in fact, the North Atlantic SST is used to define the periods of the AMO;

2) The increase of Global Warming is apparently resulting in increased global average tropical SSTs.

Followed by: * Since 1970 tropical SSTs have increased 0.5 ºC * Water vapor has likely increased ~ 4 %.

3) The apparent increase in global average tropical SSTs are apparently resulting in increasing frequencies of more intense hurricanes.

Does the number of TCs increase or decrease as the tropical SSTs are flattened?

Once again, model projections suggest that these changes in shear should not be simply extrapolated into the future, and the credibility of these projections depends once again on the credibility of the projections of the spatial structure of trends in tropical SSTs.

Not exact matches

Trends are apparent in SSTs and other critical variables that influence tropical thunderstorm and tropical storm development.

The western tropical Pacific is known as the «warm pool» with the highest sea surface temperature (SST) in the world (on average).

The changes in MHW properties (Fig. 1b, e, h, k) also clearly indicate signatures of a negative PDO pattern (SST decreases in the central and eastern tropical Pacific and in the eastern extra tropical Pacific Ocean; Supplementary Fig. 2A) and of a positive AMO pattern (SST increases in the North Atlantic particularly away from the mid-latitudes; Supplementary Fig. 2B).

Reversal of three global atmospheric fields linking changes in SST anomalies in the Pacific, Atlantic and Indian oceans at tropical latitudes and midlatitudes

For significant periods of time, the reconstructed large - scale changes in the North Pacific SLP field described here and by construction the long - term decline in Hawaiian winter rainfall are broadly consistent with long - term changes in tropical Pacific sea surface temperature (SST) based on ENSO reconstructions documented in several other studies, particularly over the last two centuries.