MeteoIODoc  MeteoIODoc-2.9.0
mio::FilterTimeconsistency Class Reference

Detailed Description

Check that the time evolution of a given parameter is consistent with its past evolution.

Compare sum of differences between snow depth (HS) value and HS value before and HS value afterwards, respectively, with 4 times of the standard deviation of HS in a defined time period (something like MAD) First, the standard deviation of HS is calculated for a certain time period. Afterwards, the difference between the value and the value before and the difference between the value and the following value are calculated. Then, the sum of the two differences is calculated and compared with 4 times of the standard deviation. Is the sum lower than the standard deviation, the HS value is accepted. Otherwise the HS value gets invalid. References/Literature: Zahumensky, Igor, 2004: Guidelines on Quality Control Procedures for Data from Automatic Weather Stations, World Meteorological Organisation

It takes as arguments the window parameters as defined in WindowedFilter::setWindowFParams().

Valid examples for the io.ini file:
HS::filter1 = time_consistency
HS::arg1::soft = true
HS::arg1::centering = left
HS::arg1::min_pts = 1
HS::arg1::min_span = 1800 ;ie left centered window spanning 1800 seconds and at least 1 points
TA::filter1 = time_consistency
TA::arg1::min_pts = 10
TA::arg1::min_span = 600 ;ie strictly centered window spanning 600 seconds and at least 10 points
Author
Anna-Maria Tilg
Date
2015-12-08

#include <FilterTimeconsistency.h>

Public Member Functions

 FilterTimeconsistency (const std::vector< std::pair< std::string, std::string > > &vecArgs, const std::string &name)
 
virtual void process (const unsigned int &param, const std::vector< MeteoData > &ivec, std::vector< MeteoData > &ovec)
 
- Public Member Functions inherited from mio::ProcessingBlock
virtual ~ProcessingBlock ()
 
virtual void process (Date &dateStart, Date &dateEnd)
 
std::string getName () const
 
const ProcessingPropertiesgetProperties () const
 
const std::string toString () const
 
bool skipStation (const std::string &station_id) const
 
bool noStationsRestrictions () const
 

Additional Inherited Members

- Public Types inherited from mio::WindowedFilter
enum  Centering { left, center, right }
 
- Static Public Member Functions inherited from mio::ProcessingBlock
static void readCorrections (const std::string &filter, const std::string &filename, std::vector< double > &X, std::vector< double > &Y)
 
static void readCorrections (const std::string &filter, const std::string &filename, std::vector< double > &X, std::vector< double > &Y1, std::vector< double > &Y2)
 
static std::vector< double > readCorrections (const std::string &filter, const std::string &filename, const size_t &col_idx, const char &c_type, const double &init)
 
static std::vector< offset_specreadCorrections (const std::string &filter, const std::string &filename, const double &TZ, const size_t &col_idx=2)
 
static std::map< std::string, std::vector< dates_range > > readDates (const std::string &filter, const std::string &filename, const double &TZ)
 
static std::set< std::string > initStationSet (const std::vector< std::pair< std::string, std::string > > &vecArgs, const std::string &keyword)
 
- Protected Member Functions inherited from mio::WindowedFilter
 WindowedFilter (const std::vector< std::pair< std::string, std::string > > &vecArgs, const std::string &name, const bool &skipWindowParams=false)
 Construct a WindowedFilter Object. This is for filters that require a certain window of data. More...
 
void setWindowFParams (const std::vector< std::pair< std::string, std::string > > &vecArgs)
 Parse the arguments in order to retrieve the user parameters for the data window. The following parameters are recognized: More...
 
const std::vector< const MeteoData * > & get_window (const size_t &index, const std::vector< MeteoData > &ivec)
 A function that cuts out the desired window for the 'index' element within ivec, the window elements are stored into vec_window Calls to this function have to start with index 0, then 1, 2, 3, ... vec_window is not allowed to be changed between two calls. More...
 
bool get_window_specs (const size_t &index, const std::vector< MeteoData > &ivec, size_t &start, size_t &end) const
 A function that computes the start and end for a window for the 'index' element from ivec The principle is to compute the first index that matches the minimum number of points criteria, and the one that matches the minimum time window, then combine them (with the equivalent of OR: we take the MIN index). Afterward, we compute the last index [...] for number of points and the last index [...] for the time window and combine them (with the equivalent of OR: we take the MIN index) or vice versa for right centering. More...
 
- Protected Member Functions inherited from mio::ProcessingBlock
 ProcessingBlock (const std::vector< std::pair< std::string, std::string > > &vecArgs, const std::string &name)
 protected constructor only to be called by children More...
 
- Static Protected Member Functions inherited from mio::ProcessingBlock
static void extract_dbl_vector (const unsigned int &param, const std::vector< MeteoData > &ivec, std::vector< double > &ovec)
 
static void extract_dbl_vector (const unsigned int &param, const std::vector< const MeteoData *> &ivec, std::vector< double > &ovec)
 
- Protected Attributes inherited from mio::WindowedFilter
Duration min_time_span
 This is filled in the constructor by calling setWindowFParams. More...
 
Centering centering
 This is filled in the constructor by calling setWindowFParams. More...
 
size_t min_data_points
 This is filled in the constructor by calling setWindowFParams. More...
 
size_t last_start
 
size_t last_end
 
bool is_soft
 
- Protected Attributes inherited from mio::ProcessingBlock
const std::set< std::string > excluded_stations
 
const std::set< std::string > kept_stations
 
ProcessingProperties properties
 
const std::string block_name
 
- Static Protected Attributes inherited from mio::ProcessingBlock
static const double soil_albedo = .23
 
static const double snow_albedo = .85
 
static const double snow_thresh = .1
 parametrize the albedo from HS More...
 

Constructor & Destructor Documentation

◆ FilterTimeconsistency()

mio::FilterTimeconsistency::FilterTimeconsistency ( const std::vector< std::pair< std::string, std::string > > &  vecArgs,
const std::string &  name 
)

Member Function Documentation

◆ process()

void mio::FilterTimeconsistency::process ( const unsigned int &  param,
const std::vector< MeteoData > &  ivec,
std::vector< MeteoData > &  ovec 
)
virtual

Implements mio::WindowedFilter.


The documentation for this class was generated from the following files: