Review Stage 2: Synthesis and Assessment Country report

TIME SERIES

Party: KG 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)

		1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011	2012	2013	2014	2015	2016
NOx	1A1b																					27	24	24		175	1650
NOx	1A2c																					9	139	139		4	4
NMVOC	1A2gviii																					0	0	0		356	356
NMVOC	1B2av																					470000	470	470		470	470
NMVOC	NATIONALTOTAL	24970	8000	6900	4000	2500	12380	2400	16150	2400	16910	16620	17610	17610	17250	17830	17210					30204	35103	603		2587	26304
NH3	1A2b																					145	1	1		1	1
NH3	1A2c																					0	0	0		138	138
NH3	1A2e																					5	3	3		15	15
NH3	NATIONALTOTAL										59114											5	4	4		220	58219

HM (Unit = g)

		1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011	2012	2013	2014	2015	2016
Pb	1A2d																					5000	5000	5
Pb	NATIONALTOTAL										5000											5000	5000	5
Cd	NATIONALTOTAL																					8300	8300	8
Hg	1A2c																					540000	540000	540		52	52
Hg	NATIONALTOTAL																					540000	540000	540		52	52