Review Stage 2: Synthesis and Assessment Country report

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TIME SERIES

Party: AZ      Submission year: 2018

The aim of this test is to identify instances of dips, jumps, and sudden trends in time series data reported by countries. Only data in NFR02, NFR09 and NFR14 reporting format were analyzed and data for which at least three years were reported. We converted all years where only NFR02 or NFR09 sectors are available to NFR14 and show only the converted sectors in the time series analysis.

The table below shows data, where outliers in the time series were identified based on the following methodology: Reported time series data were log 10-transformed prior to analysis to reduce intra-series variability and improve general time series linearity. A linear regression was subsequently applied to the log-transformed values for each time series.

An individual value within the time series was identified as a dip/jump if the respective residual value (regression forecast value - reported value) was greater than 2 standard deviations from the mean of all residuals within the time series. Only time series where the flagged data value contributed a significant fraction (>3%) of the national total for the given year are included in this dataset for expert review.

Time series where sigma grow largely (i.e. larger than 20% of the time series mean value) because of extreme variation in the emission data are also flagged. Zero values indicate small numbers rounded to zero.

The test was performed for the following time series (if data was available):
Main pollutants: 1990 – 2016
HMs and POPs: 1990 - 2016
PMs: 2000 - 2016

If there is a number and a notation key reported, the difference is the number

Color Key

 

Indicates a dip in the time series data

 

Indicates a jump in the time series data

 

Indicates time series data with large sigma


MAIN (Unit = Mg)
199019911992199319941995199619971998199920002001200220032004200520062007200820092010201120122013201420152016
NOx1A4bii                 488651053510328425992288195715961 
NOx3B397632211111111111110000000 
NMVOC2D3a192561949019775200882038420637208612105921267214742168921909221172232722543228082309323398237062402224294246002493525263256361151211647
SOx1A1a     121515141415454242494757146175116114107154148269834313186

PM (Unit = Mg)
20002001200220032004200520062007200820092010201120122013201420152016
PM2.51A391111131417216238784526927418431631247843 
BC1A3dii              1311212
BC5C1bi              1741011
BC5C1bii              39000

HM (Unit = g)
199019911992199319941995199619971998199920002001200220032004200520062007200820092010201120122013201420152016
Pb2C1     110405060460023001380 2116015042025944041584013160601542380215280012792606913801409900174386020424001161040149777813944901600032
Pb5C1bi                   65403061880074386086502076583064649010025601035580
Pb5C1bii                   13520759204823014807011232014469027417033670
PbNATIONALTOTAL     80920686036756065014487885213365879195550306086463212137255616041302349358149200915371522357284287386933941842399889270535529597242935506
PbNTCOMPLIANCE     8092068603675606501448788521336587919555030608646321213725561604130234935814920091537152235728428738693394184239988927053552959724 
Cd1B2aiv     48399478794874159787718797361877913801168019880784114980167555217247227021257121259275232694221211221633342033307230599
Hg1B2aiv     48399478794874159787718797361877913801168019880784114980167555217247227021257121259275232694221211221633342033307230599
Hg2C1     2401101005030 460327056409040286103353046800278101503030650379104440025240325603031534783