The K-index, and by extension the Planetary K-index, are used to characterize the magnitude of geomagnetic storms. Kp is an excellent indicator of disturbances in the Earth's magnetic field and is used by SWPC to decide whether geomagnetic alerts and warnings need to be issued for users who are affected by these disturbances.
This chart updates every minute. The Estimated 3-hour Planetary Kp-index is derived at the NOAA Space Weather Prediction Center using data from the following ground-based magnetometers: Sitka, Alaska; Meanook, Canada; Ottawa, Canada; Fredericksburg, Virginia; Hartland, UK; Wingst, Germany; Niemegk, Germany; and Canberra, Australia. These data are made available thanks to the cooperative efforts between SWPC and data providers around the world, which currently includes the U.S. Geological Survey, Natural Resources Canada (NRCAN), the British Geological Survey, the German Research Centre for Geosciences (GFZ), and Geoscience Australia. Important magnetometer observations are also contributed by the Institut de Physique du Globe de Paris and the Korean Space Weather Center K-index Watches are issued when the highest predicted NOAA estimated Kp-indices for a day are K = 5, 6, 7, or >= 8 and is reported in terms of the NOAA G scale. K-index Warnings are issued when NOAA estimated Kp-indices of 4, 5, 6, and 7 or greater are expected. K-index Alerts are issued when the NOAA estimated Kp-indices reach 4, 5, 6, 7, 8, or 9.
The K-index quantifies disturbances in the horizontal component of earth's magnetic field with an integer in the range 0-9 with 1 being calm and 5 or more indicating a geomagnetic storm. It is derived from the maximum fluctuations of horizontal components observed on a magnetometer during a three-hour interval. The planetary 3-hour-range index Kp is the mean standardized K-index from 13 geomagnetic observatories between 44 degrees and 60 degrees northern or southern geomagnetic latitude. The label 'K' comes from the German word 'Kennziffer' meaning 'characteristic digit.' The K-index was introduced by Julius Bartels in 1938. SWPC has used the K-index since the forecast center began operations.
The health dimension is assessed by life expectancy at birth, the education dimension is measured by mean of years of schooling for adults aged 25 years and more and expected years of schooling for children of school entering age. The standard of living dimension is measured by gross national income per capita. The HDI uses the logarithm of income, to reflect the diminishing importance of income with increasing GNI. The scores for the three HDI dimension indices are then aggregated into a composite index using geometric mean. Refer to Technical notes for more details.
Programming language Kotlin is making good progress. It gained 0.17% this month and moved 3 positions from #18 to #15. We have already discussed Kotlin 2 months ago when it entered the top 20 of the TIOBE index. The first wave of Kotlin popularity was in 2017 when Google announced first class support for Kotlin on Android. At that time, Kotlin peaked at almost 1% in the TIOBE index. That record has been beaten this month with a current rating of 1.15%. Where will the progress of Kotlin stop? Kotlin is fully interoperable with Java, thus being a direct competitor of the Java programming language. That doesn't only hold for developing apps for Android. Every Java domain has become an opportunity for Kotlin nowadays. Kotlin fits in the modern programming culture of expressive languages that have a strong type system and avoid occurrences of null pointer exceptions by design. Based on my experience, I am pretty sure Kotlin can reach a top 10 position. If it can become part of the "big 4" remains a question that is still to be answered. -- Paul Jansen CEO TIOBE Software
The TIOBE Programming Community index is an indicator of the popularity of programming languages. The index is updated once a month. The ratings are based on the number of skilled engineers world-wide, courses and third party vendors. Popular search engines such asGoogle, Bing, Yahoo!, Wikipedia, Amazon, YouTube and Baidu are used to calculate the ratings.It is important to note that the TIOBE index is not about the best programming language or the languagein which most lines of code have been written.
The index can be used to check whether your programming skills are still up to date or to make a strategic decision about what programming language should be adopted when starting to build a new software system. The definition of the TIOBE index can be found here.
This month the following changes have been made to the definition of the index:
We spent a lot of effort to obtain all the data and keep the TIOBE index up to date. In order to compensate a bit for this, we ask a fee of 5,000 US$ for the complete data set. The data set runs from June 2001 till today. It started with 25 languages back in 2001, and now measures more than 150 languages once a month. The data are available in comma separated format. Please contact sa...@tiobe.com for more information.
The z-index CSS property sets the z-order of a positioned element and its descendants or flex and grid items. Overlapping elements with a larger z-index cover those with a smaller one.
This is the stack level of the generated box in the current stacking context. The box also establishes a local stacking context. This means that the z-indexes of descendants are not compared to the z-indexes of elements outside this element.
Most of our Search index is built through the work of software known as crawlers. These automatically visit publicly accessible webpages and follow links on those pages, much like you would if you were browsing content on the web. They go from page to page and store information about what they find on these pages and other publicly-accessible content in Google's Search index.
Google also provides a free toolset called Search Console that creators can use to help us better crawl their content. They can also make use of established standards like sitemaps or robots.txt to indicate how often content should be visited or if it shouldn't be included in our Search index at all.
In fact, we have multiple indexes of different types of information, which is gathered through crawling, through partnerships, through data feeds being sent to us and through our own encyclopedia of facts, the Knowledge Graph.
These many indexes mean that you can search within millions of books from major libraries, find travel times from your local public transit agency, or find data from public sources like the World Bank.
This calculator provides body mass index (BMI) and the corresponding BMI weight status category for adults 20 years and older. For children and teens, 2 through 19 years, use the BMI Calculator for Children and Teens.
An index fund is a mutual fund or ETF that seeks to replicate the performance of an index, often by constructing its portfolio to mirror that of the index itself. Index investing is considered a passive strategy since it does not involve any stock picking or active management. Studies show that over time, indexing strategies tend to perform better than stock picking strategies. Because they are passive index funds also tend to have lower fees and tax exposure."}},"@type": "Question","name": "What Are Different Ways to Construct an Index?","acceptedAnswer": "@type": "Answer","text": "Indexes can be built in a number of ways, often with consideration to how to weight the various components of the index. The three main ways include: