Changes in the metastability of the Southern Hemisphere 500-hPa circulation are examined using both cluster analysis techniques and split-flow blocking indices. The cluster methodology is a purely data-driven approach for parameterization whereby a multiscale approximation to nonstationary dynamical processes is achieved through optimal sequences of locally stationary fast vector autoregressive factor (VARX) processes and some slow (or persistent) hidden process switching between them. Comparison is made with blocking indices commonly used in weather forecasting and climate analysis to identify dynamically relevant metastable regimes in the 500-hPa circulation in both reanalysis and Atmospheric Model Intercomparison Project (AMIP) datasets. The analysis characterizes the metastable regime in both reanalysis and model datasets prior to 1978 as positive and negative phases of a hemispheric midlatitude blocking state with the southern annular mode (SAM) associated with a transition state. Post-1978, the SAM emerges as a true metastable state replacing the negative phase of the hemispheric blocking pattern. The hidden state frequency of occurrences exhibits strong trends. The blocking pattern dominates in the early 1980s, and then gradually decreases. There is a corresponding increase in the SAM frequency of occurrence. This trend is largely evident in the reanalysis summer and spring but was not evident in the AMIP dataset. Further comparison with the split-flow blocking indices reveals a superficial correspondence between the cluster hidden state frequency of occurrences and split-flow indices. Examination of composite states shows that the blocking indices capture splitting of the zonal flow whereas the cluster composites reflect coherent block formation. Differences in blocking climatologies from the respective methods are discussed.
want to successfully run a dry cleaning shop, we need to do a lot of work, of which the service has played a pivotal role. However, we need to do what services, many operators are not clear. So, dry cleaners to do what business? Let Xiaobian for your detailed analysis.
for laundry washing shop operators, a good reputation and reputation is very important, can bring more business to dry cleaners. Want to improve the customer’s impression of dry cleaners, we should start from the daily operation of the service, quality service to win the credibility of the dry cleaners.
1, seize the main service object
when we do business, we often say that a certain person, is the person. Do dry cleaning industry is the same, dry cleaners to complete all the services must be recognized before the customer can see.
2, don’t despise any customer
dry cleaners every customer is a very important person, if you only pay attention to the feelings of the VIP customers, the requirements of scattered customers to ignore, it is wrong and wrong. When any customer requests, should be within the scope of their ability to help.
3, seize the main problem to solve
operating dry cleaners, punctuality is very important, in the agreed time for the customer service. Therefore, in the agreed time, we must first solve the main problem, so as not to commit the mistake of putting the cart before the horse, which is the most vulnerable to dry cleaners technical mistakes.
4, do not speak too absolute
There is no absolute thing in
world, when operating the dry cleaners, you don’t say "no problem" or "should do"; you can keep silent, if you have to say, you can say: "there is no problem", "can do", "problem then, we will provide you with timely service", "normally should be" like it.
5, easy and decent behavior
a drop of water can refract a sun, the staff are represented in every word and action of dry cleaners, do not be too casual, a movement of a word are likely to lose a customer, laundry service personnel should form good habits, occupation, Maoshoumaojiao untidy, arguments are service personnel should pay attention to.
6, do not deliberately belittle peers
don’t try to push yourself up by belittling peers