Armed Swiss police officers stand guard on the roof of a hotel near the congress center, where the annual meeting of the World Economic Forum takes place in Davos, Switzerland, Tuesday, Jan. 23, 2018. (AP Photo/Markus Schreiber)Some Davos residents had to be evacuated because of an avalanche threat. U.S. President Donald Trump is scheduled to arrive for the meetings Friday.
The rolling, wave-like cloud formations are called Kelvin-Helmoltz clouds. Sometimes, they are also called billows. These clouds are named for scientists Lord Kelvin and Hermann von Helmholtz, who discovered the process by which they form. These breaking atmospheric waves occur in an environment with a large amount of vertical wind shear and stable air. Wind shear is the change in wind speed and direction as you go higher in the atmosphere.
The average daily temperature is calculated by adding together that day's high and low temperature and dividing by two. For 87 straight days, dating back to Oct. 26, that value was above the 30-year average from 1981 to 2010 in Utqiaġvik. This remarkable streak ended Sunday, when the day's average temperature was 4 degrees colder than average for Jan. 21. In fact, Sunday's low temperature of minus 25 degrees was the coldest reading of the winter so far.
Muck Rack makes it simple to find people, tweets, or articles that mention any name, keyword, company, hashtag etc. We've compiled this guide to help you make the most of your search.
Selecting a term
Start searching tweets, articles from media outlets, articles mentioned in tweets, journalists'
names, titles and bios with some suggested searches:
Companies or Topics (e.g. iPhone, Microsoft)
Phrases (e.g. "cloud computing") — use quotes to keep the terms together
Twitter handles (e.g. @username) — returns those who have mentioned or replied to
Names (e.g. "David Pogue")
Hashtags (e.g. #sxsw, #london2012)
Bio details (e.g. vegan, Olympics, father)
Muck Rack's Advanced Search allows for many boolean operators.
Find results that mention multiple specified terms, use AND or
+. For example, ensure each result contains both Elon Musk and Mark Zuckerberg by
searching Musk AND Zuckerberg or Musk + Zuckerberg.
Use the operators OR or , to broaden your search when you'd like either of
multiple terms to appear in results. (This is the default behavior of our search when no operators
are used). For example, results will contain either cake or cookie by searching cake OR cookie or cake,cookie
Use NOT or - to subtract results from your search. For
example, searching Disney will yield results about the Walt Disney Company as well as Walt Disney
World Resort. To exclude mentions of Disney World, search for Disney -World or Disney
When using one of these operators with a phrase, enclose it in quotation marks. For example, you can
find results about smartphones excluding Apple's iPhone 4S by searching smartphone -"iPhone
Exact case matching or punctuation
If you're searching for a brand name or keyword that relies on specific punctuation marks or capitalization, you can
find results that match your exact query by adding matchcase: before the keyword you're searching for, like matchcase:E*TRADE .
Use parentheses to separate multiple
boolean phrases. For example, to find journalists talking about having fun in Disney World or
Disneyland, search for ("disney world" OR disneyland) AND fun.
An asterisk can be used to search for any variation of a root word truncated by the asterisk. For example, searching for admin* will return results for administrator, administration, administer, administered, etc.
A near operator is an AND operator where you can control the distance between the words. You can vary the distance the near operation uses by adding a forward slash and number (between 0-99) such as strawberries NEAR/10 "whipped cream", which means the strawberries must exist within 10 words of "whipped cream".