wqx
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Water Quality Exchange (WQX): JSON Schema
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JavaScript
export default {
'1 Pctl':
'A 1st percentile says that 1% of the time data points are below that value and 99% of the time they are above that value.',
'10 Pctl':
'the 10th percentile is the value (or score) below which 10% of the observations may be found.',
'15 Pctl':
'the 15th percentile is the value (or score) below which 15% of the observations may be found.',
'16 Pctl':
'the 16th percentile is the value (or score) below which 16% of the observations may be found.',
'2-Sigma CSU': '2-Sigma CSU',
'20 Pctl':
'the 20th percentile is the value (or score) below which 20% of the observations may be found.',
'25 Pctl':
'also known as the first quartile (Q1), is the 25th percentile is the value (or score) below which 25% of the observations may be found.',
'30-day Geometric Mean':
'Calculating a geometric mean (over 30 days period) provides a number that is more representative of the median and helps reduce the effect of a few extreme values.',
'30DADMean': 'Thirty day average daily mean',
'5 Pctl':
'A 5th percentile says that 5% of the time data points are below that value and 95% of the time they are above that value.',
'50 Pctl':
'also known as the median or second quartile (Q2), is the 50th percentile is the value (or score) below which 50% of the observations may be found.',
'75 Pctl':
'also known as the third quartile (Q3), is the 75th percentile is the value (or score) below which 75% of the observations may be found.',
'7DADM': 'Seven Day Average Daily Maximum',
'7DADMean': 'Seven day average daily mean',
'7DADMin': 'Seven day average daily minimum',
'80 Pctl':
'the 80th percentile is the value (or score) below which 80% of the observations may be found.',
'84 Pctl':
'the 84th percentile is the value (or score) below which 84% of the observations may be found.',
'85 Pctl':
'the 85th percentile is the value (or score) below which 85% of the observations may be found.',
'90 Pctl':
'the 90th percentile is the value (or score) below which 90% of the observations may be found.',
'95 Pctl':
'A 95th percentile says that 95% of the time data points are below that value and 5% of the time they are above that value.',
'99 Pctl':
'A 99th percentile says that 95% of the time data points are below that value and 1% of the time they are above that value.',
AMS: 'A method to calculate expanded uncertainty where sample size =7( 7 measures of one sample)',
'AMS+':
'A method to calculate expanded uncertainty where sample size =7 ( based on 7 measures of different samples)',
'Area-Weighted Mean':
'The mean value of a set, weighted by the area over which individual values in the set were measured',
BAV: 'Beach Action Values - level of concentration, 75th percentile of the geometric mean of the water samples (the value at which beach advisories should be issued.)',
BNT: 'Beach notification threshold – A water quality value selected by a state or tribe that is used to “trigger” a beach notification.',
'Coefficient of error':
'the standard error of the mean of repeated estimates divided by the mean',
'Coefficient of variation':
'a statistical measure of the dispersion of data points in a data series around the mean. The coefficient of variation represents the ratio of the standard deviation to the mean',
Count:
'count data is a statistical data type, a type of data in which the observations can take only the non-negative integer values, and where these integers arise from counting rather than ranking',
'Daily Geometric Mean':
'Calculating a geometric mean (a daily period) provides a number that is more representative of the median and helps reduce the effect of a few extreme values.',
'Daily Maximum': 'The largest value of a set, each period of a day cycle',
'Daily Mean': 'The mean value of a set, each period of a day cycle',
'Daily Median':
'The median value of a set (also known as the 50 Pctl), each period of a day cycle',
'Daily Minimum': 'The smallest value of a set, each period of a day cycle',
Delta: 'The measurable difference between two points or results themselves',
'Geometric Mean':
'the geometric mean is a mean or average, which indicates the central tendency or typical value of a set of numbers by using the product of their values.',
'Hourly Maximum': 'The largest value of a set, each period of a hour cycle',
'Hourly Minimum': 'The smallest value of a set, each period of a hour cycle',
Instantaneous:
'The rate of change at a particular moment. Same as the value of the derivative at a particular point.',
Kurtosis:
'a measure of whether the data are peaked or flat relative to a normal distribution. The sharpness of the peak of a frequency-distribution curve.',
'Log Standard Error':
'This is the standard deviation of the sample mean, xBar, and describes its accuracy as an estimate of the population mean, mu, for values in logarithmic units.',
MPN: 'Most Probable Number (MPN) is a method used to estimate the concentration of viable microorganisms in a sample by means of replicate liquid broth growth in ten-fold dilutions.',
Maximum:
'The maximum is a unique number for a given set of data. This number can be repeated, but there is only one maximum for a data set',
Mean: 'mean is the sum of all the numbers in the set divided by the amount of numbers in the set',
Median:
'median is the middle point of a number set, in which half the numbers are above the median and half are below.',
Minimum: 'the smallest or the least value in a given set of data.',
Mode: 'The mode of a set of data values is the value that appears most often.',
N: 'N represents the total number of individuals or cases in the population',
'Percent Similarity': 'Percent Similarity',
'Percent diff from true':
'a percentage deviation or a measure of difference between the observed value of a variable and some reference value',
'Percent of total':
'function returns the percentage of each value in the input series out of the total sum of the values in the input series.',
'Percent recovery':
'The percent recovery is the amount of pure compound with respect to the impure compound obtained from the chemical synthesis',
Precision:
'In statistics, precision is the reciprocal of the variance, and the precision matrix is the matrix inverse of the covariance matrix',
'Quartile Deviation':
'The quartile deviation is a slightly better measure of absolute dispersion than the range. But it ignores the observation on the tails.',
'RAD Error': 'Inherent Error in Radiological Instruments',
Range:
'the range is the spread of your data from the lowest to the highest value in the distribution. It is the simplest measure of variability',
Ratio:
'the quantitative relation between two amounts showing the number of times one value contains or is contained within the other.',
'Relative percent diff':
'the Relative Percent Difference (RDP) determines the difference between analytical results reported in primary, and duplicate samples. RDP statistics are used to calculate precision or random error.',
STV: 'statistical threshold value - level of concentration, the 90th percentile of the geometric mean of the samples for a particular water body',
'Single Sample Maximum':
'a single sample or measurement taken at a specific time and determining the maximum number of defects discovered in a sample',
Skewness:
'a measure of the asymmetry of the probability distribution of a real-valued random variable about its mean.',
Slope:
'the slope or gradient of a line is a number that describes both the direction and the steepness of the line. The significance of a linear relationship between x and y',
'Standard Deviation': 'This describes the spread of values in the sample',
'Standard Error':
'This is the standard deviation of the sample mean, xBar, and describes its accuracy as an estimate of the population mean, mu. ',
Sum: 'Use summation notation to express the sum of all numbers.',
Variance:
'the most commonly used measures of spread. We know that variance is a measure of how spread out a data set is. It is calculated as the average squared deviation of each number from the mean of a data'
}