11. METplus Statistics & Diagnostics

11.1. Statistics Database

11.1.1. Statistics List A-B

Statistics List A-B

Statistics Long Name	METplus Name	Statistic Type	Tools	METplus Line Type
Accuracy	ACC	Categorical	Point-Stat Grid-Stat MODE	CTS MCTS NBRCTS MODE cts
Asymptotic Fractions Skill Score	AFSS	Neighborhood	Grid-Stat	NBRCNT
Along track error (nm)	ALTK_ERR	Continuous	TC-Pairs TC-Stat	TCMPR TCST
Anomaly Correlation including mean error	ANOM_CORR	Continuous	Point-Stat Grid-Stat Series-Analysis Stat-Analysis	CNT
Uncentered Anomaly Correlation excluding mean error	ANOM_CORR _UNCNTR	Continuous	Point-Stat Grid-Stat Series-Analysis Stat-Analysis	CNT
Baddeley’s Delta Metric	BADDELEY	Distance Map	Grid-Stat	DMAP
Bias Adjusted Gilbert Skill Score	BAGSS	Categorical	Point-Stat Grid-Stat	CTS NBRCTS
Base Rate	BASER	Categorical	Point-Stat Grid-Stat Wavelet-Stat MODE	CTS ECLV MODE cts NBRCTCS PSTD PJC
Bias-corrected mean squared error	BCMSE	Continuous	Point-Stat Grid-Stat Ensemble-Stat	CNT SSVAR
Brier Score	BRIER	Probability	Point-Stat Grid-Stat	PSTD
Climatological Brier Score	BRIERCL	Probability	Point-Stat Grid-Stat	PSTD
Brier Skill Score relative to sample climatology	BSS	Probability	Point-Stat Grid-Stat	PSTD
Brier Skill Score relative to external climatology	BSS_SMPL	Probability	Point-Stat Grid-Stat	PSTD

11.1.2. Statistics List C-E

Statistics List C-E

Statistics Long Name	METplus Name	Statistic Type	Tools	METplus Line Type
Calibration when forecast is between the ith and i+1th probability thresholds (repeated)	CALIBRATION _i	Probability	Point-Stat Grid-Stat	PJC
Climatological mean value	CLIMO_MEAN	Continuous	Point-Stat Grid-Stat Ensemble-Stat	MPR ORANK
Climatological standard deviation value	CLIMO_STDEV	Continuous	Point-Stat Grid-Stat Ensemble-Stat	MPR ORANK
Continuous Ranked Probability Score (normal dist.)	CRPS	Ensemble	Ensemble-Stat	ECNT
Continuous Ranked Probability Score (empirical dist.)	CRPS_EMP	Ensemble	Ensemble-Stat	ECNT
Climatological Continuous Ranked Probability Score (normal dist.)	CRPSCL	Ensemble	Ensemble-Stat	ECNT
Climatological Continuous Ranked Probability Score (empirical dist.)	CRPSCL_EMP	Ensemble	Ensemble-Stat	ECNT
Continuous Ranked Probability Skill Score (normal dist.)	CRPSS	Ensemble	Ensemble-Stat	ECNT
Continuous Ranked Probability Skill Score (empirical dist.)	CRPSS_EMP	Ensemble	Ensemble-Stat	ECNT
Cross track error (nm)	CRTK_ERR	Continuous	TC-Pairs TC-Stat	TCMPR TCST
Critical Success Index	CSI	Categorical	Point-Stat MODE cts Grid-Stat	CTS MODE MBRCTCS
Absolute value of DIR_ERR (see below)	DIR_ABSERR	Continuous	Point-Stat Grid-Stat	VCNT
Signed angle between the directions of the average forecast and observed wind vectors	DIR_ERR	Continuous	Point-Stat Grid-Stat	VCNT
Expected correct rate used for MCTS HSS_EC	EC_VALUE	Categorical	Point-Stat Grid-Stat	MCTC
Extreme Dependency Index	EDI	Categorical	Point-Stat Grid-Stat	CTS NBRCTS
Extreme Dependency Score	EDS	Categorical	Point-Stat Grid-Stat	CTS NBRCTS
Mean of absolute value of forecast minus observed gradients	EGBAR	Continuous	Grid-Stat	GRAD
The unperturbed ensemble mean value	ENS_MEAN	Ensemble	Ensemble-Stat	ORANK
The PERTURBED ensemble mean (e.g. with Observation Error).	ENS_MEAN _OERR	Ensemble	Ensemble-Stat	ORANK
Standard deviation of the error	ESTDEV	Continuous	Point-Stat Grid-Stat Ensemble-Stat	CNT SSVAR

11.1.3. Statistics List F

Statistics List F

Statistics Long Name	METplus Name	Statistic Type	Tools	METplus Line Type
Forecast rate/event frequency	F_RATE	Categorical	Point-Stat Grid-Stat	FHO NBRCNT
Mean forecast wind speed	F_SPEED _BAR	Continuous	Point-Stat Grid-Stat	VL1L2
Mean Forecast Anomaly	FABAR	Continuous	Point-Stat Grid-Stat	SAL1L2
False alarm ratio	FAR	Categorical	Point-Stat Grid-Stat MODE	CTS MODE NBRCTCS
Forecast mean	FBAR	Categorical	Ensemble-Stat Point-Stat Grid-Stat	SSVAR CNT SL1L2 VCNT
Length (speed) of the average forecast wind vector	FBAR _SPEED	Continuous	Point-Stat Grid-Stat	VCNT
Frequency Bias	FBIAS	Categorical	Wavelet-Stat MODE Point-Stat Grid-Stat	ISC MODE CTS NBRCTCS DMAP
Fractions Brier Score	FBS	Continuous	Grid-Stat	NBRCNT
Direction of the average forecast wind vector	FDIR	Continuous	Point-Stat Grid-Stat	VCNT
Mean Forecast Anomaly Squared	FFABAR	Continuous	Point-Stat Grid-Stat	SAL1L2
Average of forecast squared.	FFBAR	Continuous	Ensemble-Stat Point-Stat Grid-Stat	SSVAR SL1L2
Count of events in forecast category i and observation category j	Fi_Oj	Categorical	Point-Stat Grid-Stat	MCTC
Forecast mean	FMEAN	Continuous	MODE Grid-Stat Point-Stat	MODE NBRCTCS CTS
Number of forecast no and observation no	FN_ON	Categorical	MODE Grid-Stat Point-Stat	MODE NBRCTC CTC
Number of forecast no and observation yes	FN_OY	Categorical	MODE Grid-Stat Point-Stat	MODE NBRCTC CTC
Attributes for pairs of simple forecast and observation objects	FNNN_ONNN	Categorical	MODE	MODE obj
Average product of forecast-climo and observation-climo / Mean(f-c)*(o-c)	FOABAR	Continuous	Point-Stat Grid-Stat	SAL1L2
Average product of forecast and observation / Mean(f*o)	FOBAR	Continuous	Ensemble-Stat Point-Stat Grid-Stat	SSVAR SL1L2
Number of tied forecast ranks used in computing Kendall’s tau statistic	FRANK_TIES	Continuous	Point-Stat Grid-Stat	CNT
Root mean square forecast wind speed	FS_RMS	Continuous	Point-Stat Grid-Stat	VCNT
Fractions Skill Score	FSS	Neighborhood	Grid-Stat	NBRCNT
Standard deviation of the error	FSTDEV	Continuous	Ensemble-Stat Point-Stat Grid-Stat	SSVAR CNT VCNT
Number of forecast events	FY	Categorical	Grid-Stat	DMAP
Number of forecast yes and observation no	FY_ON	Categorical	MODE Point-Stat Grid-Stat	MODE CTC NBRCTC
Number of forecast yes and observation yes	FY_OY	Categorical	MODE Point-Stat Grid-Stat	MODE CTC NBRCTC

11.1.4. Statistics List G-M

Statistics List G-M

Statistics Long Name	METplus Name	Statistic Type	Tools	METplus Line Type
Gerrity Score and bootstrap confidence limits	GER	Categorical	Point-Stat Grid-Stat	MCTS
Gilbert Skill Score	GSS	Categorical	Point-Stat Grid-Stat MODE	CTS NBRCTCS MODE
Hit rate	H_RATE	Categorical	Point-Stat Grid-Stat	FHO
Hanssen and Kuipers Discriminant	HK	Categorical	MODE Point-Stat Grid-Stat	MODE cts MCTS CTS NBRCTS
Heidke Skill Score	HSS	Categorical	MODE Point-Stat Grid-Stat	MODE cts MCTS CTS NBRCTS
Heidke Skill Score user-specific expected correct	HSS_EC	Categorical	Point-Stat Grid-Stat	MCTS
Ignorance Score	IGN	Ensemble	Ensemble-Stat	ECNT
Interquartile Range	IQR	Continuous	Point-Stat Grid-Stat	CNT
Kendall’s tau statistic	KT_CORR	Continuous	Point-Stat Grid-Stat	CNT
Likelihood when forecast is between the ith and i+1th probability thresholds repeated	LIKELIHOOD _i	Probability	Point-Stat Grid-Stat	PJC
Logarithm of the Odds Ratio	LODDS	Categorical	Point-Stat Grid-Stat	CTS NBRCTS
The Median Absolute Deviation	MAD	Continuous	Point-Stat Grid-Stat	CNT
Mean absolute error	MAE	Continuous	Point-Stat Grid-Stat	CNT SAL1L2 SL1L2
Magnitude & Multiplicative bias	MBIAS	Continuous	Ensemble-Stat Point-Stat Grid-Stat	SSVAR CNT
The Mean Error	ME	Continuous	Ensemble-Stat Point-Stat Grid-Stat	ECNT SSVAR CNT
The Mean Error of the PERTURBED ensemble mean	ME_OERR	Continuous	Ensemble-Stat	ECNT
The square of the mean error (bias)	ME2	Continuous	Point-Stat Grid-Stat	CNT
Mean-error Distance from observation to forecast	MED_FO	Distance	Grid-Stat	DMAP
Maximum of MED_FO and MED_OF	MED_MAX	Distance	Grid-Stat	DMAP
Mean of MED_FO and MED_OF	MED_MEAN	Distance	Grid-Stat	DMAP
Minimum of MED_FO and MED_OF	MED_MIN	Distance	Grid-Stat	DMAP
Mean-error Distance from forecast to observation	MED_OF	Distance	Grid-Stat	DMAP
Mean squared error	MSE	Continuous	Ensemble-Stat Wavelet-Stat Point-Stat Grid-Stat	SSVAR ISC CNT
The mean squared error skill	MSESS	Continuous	Point-Stat Grid-Stat	CNT
Mean squared length of the vector difference between the forecast and observed winds	MSVE	Continuous	Point-Stat Grid-Stat	VCNT

11.1.5. Statistics List N-O

Statistics List N-O

Statistics Long Name	METplus Name	Statistic Type	Tools	METplus Line Type
Dimension of the contingency table & the total number of categories in each dimension	N_CAT	Categorical	Point-Stat Grid-Stat	MCTC MCTS
Observation rate	O_RATE	Categorical	Point-Stat Grid-Stat	NBRCNT FHO
Mean observed wind speed	O_SPEED_BAR	Continuous	Point-Stat Grid-Stat	VL1L2
Mean Observation Anomaly	OABAR	Continuous	Point-Stat Grid-Stat	SAL1L2
Average observed value	OBAR	Continuous	Ensemble-Stat Point-Stat Grid-Stat .	SSVAR CNT SL1L2 VCNT
Length (speed) of the average observed wind vector	OBAR_SPEED	Continuous	Point-Stat Grid-Stat	VCNT
Odds Ratio	ODDS	Categorical	MODE Point-Stat Grid-Stat	MODE CTS NBRCTS
Direction of the average observed wind vector	ODIR	Continuous	Point-Stat Grid-Stat	VCNT
Number of observation when forecast is between the ith and i+1th probability thresholds	ON_i	Probability	Point-Stat Grid-Stat	PTC
Number of observation when forecast is between the ith and i+1th probability thresholds	ON_TP_i	Probability	Point-Stat Grid-Stat	PJC
Mean Squared Observation Anomaly	OOABAR	Continuous	Point-Stat Grid-Stat	SAL1L2
Average of observation squared	OOBAR	Continuous	Ensemble-Stat Point-Stat Grid-Stat	SSVAR SL1L2
Number of tied observation ranks used in computing Kendall’s tau statistic	ORANK_TIES	Continuous	Point-Stat Grid-Stat	CNT
Odds Ratio Skill Score	ORSS	Categorical	Point-Stat Grid-Stat	CTS NBRCTS
Root mean square observed wind speed	OS_RMS	Continuous	Point-Stat Grid-Stat	VCNT
Standard deviation of observations	OSTDEV	Continuous	Ensemble-Stat Point-Stat Grid-Stat	SSVAR CNT VCNT
Number of observation events	OY	Categorical	Grid-Stat	DMAP
Number of observation yes when forecast is between the ith and i+1th probability thresholds	OY_i	Probability	Point-Stat Grid-Stat	PTC
Number of observation yes when forecast is between the ith and i+1th probability thresholds as a proportion of the total OY (repeated)	OY_TP_i	Probability	Point-Stat Grid-Stat	PJC

11.1.6. Statistics List P-R

Statistics List P-R

Statistics Long Name	METplus Name	Statistic Type	Tools	METplus Line Type
Probability Integral Transform	PIT	Ensemble	Ensemble-Stat	ORANK
Probability of false detection	PODF	Categorical	Point-Stat Grid-Stat	CTS
Probability of detecting no	PODN	Categorical	Point-Stat Grid-Stat MODE	CTS NBRCTCS MODE
Probability of detecting yes	PODY	Categorical	Point-Stat Grid-Stat MODE	CTS NBRCTCS MODE
Probability of detecting yes when forecast is greater than the ith probability thresholds	PODY_i	Categorical	Point-Stat Grid-Stat	PRC
Probability of false detection	POFD	Categorical	MODE Grid-Stat	MODE NBRCTCS
Probability of false detection when forecast is greater than the ith probability thresholds	POFD_i	Categorical	Point-Stat Grid-Stat	PRC
Pearson correlation coefficient	PR_CORR	Continuous	Ensemble-Stat Point-Stat Grid-Stat	SSVAR CNT
Rank of the observation	RANK	Ensemble	Ensemble-Stat	ORANK
Count of observations with the i-th rank	RANK_i	Ensemble	Ensemble-Stat	RHIST
Number of ranks used in computing Kendall’s tau statistic	RANKS	Continuous	Point-Stat Grid-Stat	CNT
Refinement when forecast is between the ith and i+1th probability thresholds (repeated)	REFINEMENT _i	Probability	Point-Stat Grid-Stat	PJC
Reliability	RELIABILITY	Probability	Point-Stat Grid-Stat	PSTD
Number of times the i-th ensemble member’s value was closest to the observation (repeated). When n members tie, 1/n is assigned to each member.	RELP_i	Ensemble	Ensemble-Stat	RELP
Resolution	RESOLUTION	Probability	Point-Stat Grid-Stat	PSTD
Root mean squared error	RMSE	Continuous	Point-Stat Grid-Stat Ensemble-Stat	CNT ECNT SSVAR
Root Mean Square Error of the PERTURBED ensemble mean	RMSE_OERR	Continuous	Ensemble-Stat	ECNT
Root mean squared forecast anomaly	RMSFA	Continuous	Point-Stat Grid-Stat	CNT
Root mean squared observation anomaly	RMSOA	Continuous	Point-Stat Grid-Stat	CNT
Square root of MSVE	RMSVE	Continuous	Point-Stat Grid-Stat	VCNT
Area under the receiver operating characteristic curve	ROC_AUC	Probability	Point-Stat Grid-Stat	PSTD
Mean of the Brier Scores for each RPS threshold	RPS	Ensemble	Ensemble-Stat	RPS
Mean of the reliabilities for each RPS threshold	RPS_REL	Ensemble	Ensemble-Stat	RPS
Mean of the resolutions for each RPS threshold	RPS_RES	Ensemble	Ensemble-Stat	RPS
Mean of the uncertainties for each RPS threshold	RPS_UNC	Ensemble	Ensemble-Stat	RPS
Ranked Probability Skill Score relative to external climatology	RPSS	Ensemble	Ensemble-Stat	RPS
Ranked Probability Skill Score relative to sample climatology	RPSS_SMPL	Ensemble	Ensemble-Stat	RPS

11.1.7. Statistics List S-T

Statistics List S-T

Statistics Long Name	METplus Name	Statistic Type	Tools	METplus Line Type
S1 score	S1	Continuous	Grid-Stat	GRAD
S1 score with respect to observed gradient	S1_OG	Continuous	Grid-Stat	GRAD
Symmetric Extremal Dependency Index	SEDI	Categorical	Point-Stat Grid-Stat	CTS NBRCTS
Symmetric Extreme Dependency Score	SEDS	Categorical	Point-Stat Grid-Stat	CTS NBRCTS
Scatter Index	SI	Continuous	Point-Stat Grid-Stat	CNT
Spearman’s rank correlation coefficient	SP_CORR	Continuous	Point-Stat Grid-Stat	CNT
Absolute value of SPEED_ERR	SPEED _ABSERR	Continuous	Point-Stat Grid-Stat	VCNT
Difference between the length of the average forecast wind vector and the average observed wind vector (in the sense F - O)	SPEED_ERR	Continuous	Point-Stat Grid-Stat	VCNT
Standard deviation of the mean of the UNPERTURBED ensemble	SPREAD	Ensemble	Ensemble-Stat	ECNT ORANK
Standard deviation of the mean of the PERTURBED ensemble	SPREAD_OERR	Ensemble	Ensemble-Stat	ECNT ORANK
Standard Deviation of unperturbed ensemble variance and the observation error variance	SPREAD_PLUS _OERR	Ensemble	Ensemble-Stat	ECNT ORANK
Track error of adeck relative to bdeck (nm)	TK_ERR	Continuous	TC-Pairs	PROBRIRW
Track error of adeck relative to bdeck (nm)	TK_ERR	Continuous	TC-Pairs	TCMPR

11.1.8. Statistics List U-Z

Statistics List U-Z

Statistics Long Name	METplus Name	Statistic Type	Tools	METplus Line Type
Mean U-component Forecast Anomaly	UFABAR	Continuous	Point-Stat Grid-Stat	VAL1L2
Mean U-component	UFBAR	Continuous	Point-Stat Grid-Stat	VL1L2
Uniform Fractions Skill Score	UFSS	Neighborhood	Grid-Stat	NBRCNT
Variability of Observations	UNCERTAINTY	Probability	Point-Stat Grid-Stat	PSTD
Mean U-component Observation Anomaly	UOABAR	Continuous	Point-Stat Grid-Stat	VAL1L2
Mean U-component Observation	UOBAR	Continuous	Point-Stat Grid-Stat	VL1L2
Mean U-component Squared Forecast Anomaly plus Squared Observation Anomaly	UVFFABAR	Continuous	Point-Stat Grid-Stat	VAL1L2
Mean U-component Squared Forecast plus Squared Observation	UVFFBAR	Continuous	Point-Stat Grid-Stat	VL1L2
Mean((uf-uc)*(uo-uc)+ (vf-vc)*(vo-vc))	UVFOABAR	Continuous	Point-Stat Grid-Stat	VAL1L2
Mean(uf*uo+vf*vo)	UVFOBAR	Continuous	Point-Stat Grid-Stat	VL1L2
Mean((uo-uc)²+(vo-vc)²)	UVOOABAR	Continuous	Point-Stat Grid-Stat	VAL1L2
Mean(uo²+vo²)	UVOOBAR	Continuous	Point-Stat Grid-Stat	VL1L2
Economic value of the base rate	VALUE_BASER	Probability	Point-Stat Grid-Stat	ECLV
Relative value for the ith Cost/Loss ratio	VALUE_i	Probability	Point-Stat Grid-Stat	ECLV
Maximum variance	VAR_MAX	Ensemble	Ensemble-Stat	SSVAR
Average variance	VAR_MEAN	Ensemble	Ensemble-Stat	SSVAR
Minimum variance	VAR_MIN	Ensemble	Ensemble-Stat	SSVAR
Direction of the vector difference between the average forecast and average wind vectors	VDIFF_DIR	Continuous	Point-Stat Grid-Stat	VCNT
Length (speed) of the vector difference between the average forecast and average observed wind vectors	VDIFF_SPEED	Continuous	Point-Stat Grid-Stat	VCNT
Mean(vf-vc)	VFABAR	Continuous	Point-Stat Grid-Stat	VAL1L2
Mean(vf)	VFBAR	Continuous	Point-Stat Grid-Stat	VL1L2
Mean(vo-vc)	VOABAR	Continuous	Point-Stat Grid-Stat	VAL1L2
Mean(vo)	VOBAR	Continuous	Point-Stat Grid-Stat	VL1L2

11.2. Diagnostics Database

11.2.1. Diagnostics List A-B

Diagnostics List A-B

Statistics Long Name	METplus Name	Statistic Type	Tools	METplus Line Type
Difference between the axis angles of two objects (in degrees)	ANGLE_DIFF	Diagnostic	MODE	MODE
Object area (in grid squares)	AREA	Diagnostic	MODE MTD	MODE obj
Forecast object area divided by the observation object area (unitless)	AREA_RATIO	Diagnostic	MODE	MODE obj
Area of the object that meet the object definition threshold criteria (in grid squares)	AREA_THRESH	Diagnostic	MODE	MODE obj
Absolute value of the difference between the aspect ratios of two objects (unitless)	ASPECT_DIFF	Diagnostic	MODE	MODE obj
Object axis angle (in degrees)	AXIS_ANG	Diagnostic	MODE MTD	MTD obj
Difference in spatial axis plane angles	AXIS_DIFF	Diagnostic	MTD	MTD obj
Blocking Index	Blocking Index	Diagnostic	METplus Use Case	n/a
Minimum distance between the boundaries of two objects	BOUNDARY _DIST	Diagnostic	MODE	MODE obj

11.2.2. Diagnostics List C-E

Diagnostics List C-E

Statistics Long Name	METplus Name	Statistic Type	Tools	METplus Line Type
Total great circle distance travelled by the 2D spatial centroid over the lifetime of the 3D object	CDIST _TRAVELLED	Diagnostic	MTD	MTD 3D obj
Distance between two objects centroids (in grid units)	CENTROID _DIST	Diagnostic	MODE	MODE obj
Latitude of centroid	CENTROID _LAT	Diagnostic	MTD MODE	MTD 2D & 3D obj MODE obj
Longitude of centroid	CENTROID _LON	Diagnostic	MTD MODE	MTD 2D & 3D obj MODE obj
Time coordinate of centroid	CENTROID_T	Diagnostic	MTD	MTD 3D obj
X coordinate of centroid	CENTROID_X	Diagnostic	MTD MODE	MTD 2D & 3D obj MODE obj
Y coordinate of centroid	CENTROID_Y	Diagnostic	MTD MODE	MTD 2D & 3D obj MODE obj
Space-Time Coherence Diagram	Coherence Diagram	Diagnostic	METplus Use Case	n/a
Ratio of the difference between the area of an object and the area of its convex hull divided by the area of the complex hull (unitless)	COMPLEXITY	Diagnostic	MODE	MODE obj
Ratio of complexities of two objects defined as the lesser of the forecast complexity divided by the observation complexity or its reciprocal (unitless)	COMPLEXITY _RATIO	Diagnostic	MODE	MODE obj
Minimum distance between the convex hulls of two objects (in grid units)	CONVEX_HULL _DIST	Diagnostic	MODE	MODE obj
Radius of curvature	CURVATURE	Diagnostic	MODE	MODE obj
Ratio of the curvature	CURVATURE _RATIO	Diagnostic	MODE	MODE obj
Center of curvature (in grid coordinates)	CURVATURE _X	Diagnostic	MODE	MODE obj
Center of curvature (in grid coordinates)	CURVATURE _Y	Diagnostic	MODE	MODE obj
Cloud Water / Precip Relationship	CW/Precip Relationship	Diagnostic	Grid-Diag	n/a
Difference in object direction of movement	DIRECTION _DIFF	Diagnostic	MTD	MTD 3D obj
Difference in the lifetimes of the two objects	DURATION _DIFF	Diagnostic	MTD	MTD 3D obj
Object end time	END_TIME	Diagnostic	MTD	MTD 3D obj
Difference in object ending time steps	END_TIME _DELTA	Diagnostic	MTD	MTD 3D obj

11.2.3. Diagnostics List F

Diagnostics List F

Statistics Long Name	METplus Name	Statistic Type	Tools	METplus Line Type
Number of forecast clusters	FCST_CLUS	Diagnostic	MODE	MODE obj
Number of points used to define the hull of all of the cluster forecast objects	FCST_CLUS _HULL	Diagnostic	MODE	MODE obj
Forecast Cluster Convex Hull Point Latitude	FCST_CLUS _HULL_LAT	Diagnostic	MODE	MODE obj
Forecast Cluster Convex Hull Point Longitude	FCST_CLUS _HULL _LON	Diagnostic	MODE	MODE obj
Number of Forecast Cluster Convex Hull Points	FCST_CLUS _HULL_NPTS	Diagnostic	MODE	MODE obj
Forecast Cluster Convex Hull Starting Index	FCST_CLUS _HULL_START	Diagnostic	MODE	MODE obj
Forecast Cluster Convex Hull Point X-Coordinate	FCST_CLUS _HULL_X	Diagnostic	MODE	MODE obj
Forecast Cluster Convex Hull Point Y-Coordinate	FCST_CLUS _HULL_Y	Diagnostic	MODE	MODE obj
Forecast Object Raw Values	FCST_OBJ _RAW	Diagnostic	MODE	MODE obj
Number of simple forecast objects	FCST_SIMP	Diagnostic	MODE	MODE obj
Number of points used to define the boundaries of all of the simple forecast objects	FCST_SIMP _BDY	Diagnostic	MODE	MODE obj
Forecast Simple Boundary Latitude	FCST_SIMP _BDY_LAT	Diagnostic	MODE	MODE obj
Forecast Simple Boundary Longitude	FCST_SIMP _BDY_LON	Diagnostic	MODE	MODE obj
Number of Forecast Simple Boundary Points	FCST_SIMP _BDY_NPTS	Diagnostic	MODE	MODE obj
Forecast Simple Boundary Starting Index	FCST_SIMP _BDY_START	Diagnostic	MODE	MODE obj
Forecast Simple Boundary X-Coordinate	FCST_SIMP _BDY_X	Diagnostic	MODE	MODE obj
Forecast Simple Boundary Y-Coordinate	FCST_SIMP _BDY_Y	Diagnostic	MODE	MODE obj
Number of points used to define the hull of all of the simple forecast objects	FCST_SIMP _HULL	Diagnostic	MODE	MODE obj
Forecast Simple Convex Hull Point Latitude	FCST_SIMP _HULL_LAT	Diagnostic	MODE	MODE obj
Forecast Simple Convex Hull Point Longitude	FCST_SIMP _HULL_LON	Diagnostic	MODE	MODE obj
Number of Forecast Simple Convex Hull Points	FCST_SIMP _HULL_NPTS	Diagnostic	MODE	MODE obj
Forecast Simple Convex Hull Starting Index	FCST_SIMP _HULL_START	Diagnostic	MODE	MODE obj
Forecast Simple Convex Hull Point X-Coordinate	FCST_SIMP _HULL_X	Diagnostic	MODE	MODE obj
Forecast Simple Convex Hull Point Y-Coordinate	FCST_SIMP _HULL_Y	Diagnostic	MODE	MODE obj
Number of thresholds applied to the forecast	FCST _THRESH _LENGTH	Diagnostic	MODE	MODE obj
Number of thresholds applied to the forecast	FCST_THRESH _LENGTH	Diagnostic	MODE	MODE obj
Forecast energy squared for this scale	FENERGY		Wavelet-Stat	ISC
Mean of absolute value of forecast gradients	FGBAR		Grid-Stat	GRAD
Ratio of forecast and observed gradients	FGOG_RATIO		Grid-Stat	GRAD
Pratt’s Figure of Merit from observation to forecast	FOM_FO	Diagnostic	Grid-Stat	DMAP
Maximum of FOM_FO and FOM_OF	FOM_MAX	Diagnostic	Grid-Stat	DMAP
Mean of FOM_FO and FOM_OF	FOM_MEAN	Diagnostic	Grid-Stat	DMAP
Minimum of FOM_FO and FOM_OF	FOM_MIN	Diagnostic	Grid-Stat	DMAP
Pratt’s Figure of Merit from forecast to observation	FOM_OF	Diagnostic	Grid-Stat	DMAP

11.2.4. Diagnostics List G-L

Diagnostics List G-L

Statistics Long Name	METplus Name	Statistic Type	Tools	METplus Line Type
Distance between the forecast and Best track genesis events (km)	GEN_DIST	Diagnostic	TC-Gen	GENMPR
Forecast minus Best track genesis time in HHMMSS format	GEN_TDIFF	Diagnostic	TC-Gen	GENMPR
Hausdorff Distance	HAUSDORFF	Diagnostic	Grid-Stat	DMAP
Hovmoeller Diagram	Hovmoeller	Diagnostic	METplus Use Case	n/a
Best track genesis minus forecast initialization time in HHMMSS format	INIT_TDIFF	Diagnostic	TC-Gen	GENMPR
10th, 25th, 50th, 75th, 90th, and user-specified percentiles of intensity of the raw field within the object or time slice	INTENSITY _10, _25, _50, _75, _90, _NN	Diagnostic	MODE	MODE obj
Sum of the intensities of the raw field within the object (variable units)	INTENSITY _SUM	Diagnostic	MODE	MODE obj
Total interest for this object pair	INTEREST	Diagnostic	MTD MODE	MTD 3D obj MODE obj
Intersection area of two objects (in grid squares)	INTERSECT ION_AREA	Diagnostic	MODE	MODE obj
Ratio of intersection area to the lesser of the forecast and observation object areas (unitless)	INTERSECT ION_OVER _AREA	Diagnostic	MODE	MODE obj
“Volume” of object intersection	INTERSECT ION_VOLUME	Diagnostic	MTD	MTD 3D obj
The intensity scale skill score	ISC		Wavelet-Stat	ISC
The scale at which all information following applies	ISCALE		Wavelet-Stat	ISC
Joint Probability Distribution between variable	Joint PDF to Diagnose Relationship	Diagnostic	Grid-Diag	n/a
Dimension of the latitude	LAT	Diagnostic	MODE	MODE obj
Length of the enclosing rectangle	LENGTH	Diagnostic	MODE	MODE obj
Dimension of the longitude	LON	Diagnostic	MODE	MODE obj

11.2.5. Diagnostics List M-O

Diagnostics List M-O

Statistics Long Name	METplus Name	Statistic Type	Tools	METplus Line Type
Meridional Means	Meridional Means	Diagnostic	METplus Use Case	n/a
Mean of maximum of absolute values of forecast and observed gradients	MGBAR		Grid-Stat	GRAD
Number of cluster objects	N_CLUS	Diagnostic	MODE	MODE obj
Number of simple forecast objects	N_FCST_SIMP	Diagnostic	MODE	MODE obj
Number of simple observation objects	N_OBS_SIMP	Diagnostic	MODE	MODE obj
Number of observed clusters	OBS_CLUS	Diagnostic	MODE	MODE obj
Number of points used to define the hull of all of the cluster observation objects	OBS_CLUS _HULL	Diagnostic	MODE	MODE obj
Observation Cluster Convex Hull Point Latitude	OBS_CLUS _HULL_LAT	Diagnostic	MODE	MODE obj
Observation Cluster Convex Hull Point Longitude	OBS_CLUS _HULL_LON	Diagnostic	MODE	MODE obj
Number of Observation Cluster Convex Hull Points	OBS_CLUS _HULL_NPTS	Diagnostic	MODE	MODE obj
Observation Cluster Convex Hull Starting Index	OBS_CLUS _HULL_START	Diagnostic	MODE	MODE obj
Observation Cluster Convex Hull Point X-Coordinate	OBS_CLUS _HULL_X	Diagnostic	MODE	MODE obj
Observation Cluster Convex Hull Point Y-Coordinate	OBS_CLUS _HULL_Y	Diagnostic	MODE	MODE obj
Number of simple observation objects	OBS_SIMP	Diagnostic	MODE	MODE obj
Number of points used to define the boundaries of the simple observation objects	OBS_SIMP _BDY	Diagnostic	MODE	MODE obj
Observation Simple Boundary Point Latitude	OBS_SIMP _BDY_LAT	Diagnostic	MODE	MODE obj
Observation Simple Boundary Point Longitude	OBS_SIMP _BDY_LON	Diagnostic	MODE	MODE obj
Number of Observation Simple Boundary Points	OBS_SIMP _BDY_NPTS	Diagnostic	MODE	MODE obj
Number of points used to define the hull of the simple observation objects	OBS_SIMP _HULL	Diagnostic	MODE	MODE obj
Number of Observation Simple Convex Hull Points	OBS_SIMP _HULL_NPTS	Diagnostic	MODE	MODE obj
Observed energy squared for this scale	OENERGY		Wavelet-Stat	ISC
Mean of absolute value of observed gradients	OGBAR		Grid-Stat	GRAD
OLR-based MJO Index	OMI	Diagnostic	METplus Use Case	n/a

11.2.6. Diagnostics List P-Z

Diagnostics List P-Z

Statistics Long Name	METplus Name	Statistic Type	Tools	METplus Line Type
Ratio of the nth percentile (INTENSITY_NN column) of intensity of the two objects	PERCENTILE _INTENSITY _RATIO	Diagnostic	MODE	MODE obj
Phase Diagram for RMM and OMI	Phase Diagram	Diagnostic	METplus Use Case	n/a
Realtime Multivariate MJO Index	RMM	Diagnostic	METplus Use Case	n/a
Spatial distance between \((x,y)\) coordinates of object spacetime centroid	SPACE _CENTROID _DIST	Diagnostic	MTD	MTD 3D obs
Difference in object speeds	SPEED_DELTA	Diagnostic	MTD	MTD 3D obs
Difference in object starting time steps	START_TIME _DELTA	Diagnostic	MTD	MTD 3D obj
Symmetric difference of two objects (in grid squares)	SYMMETRIC _DIFF	Diagnostic	MODE	MODE obj
Difference in t index of object spacetime centroid	TIME _CENTROID _DELTA	Diagnostic	MTD	MTD 3D obj
Union area of two objects (in grid squares)	UNION_AREA	Diagnostic	MODE	MODE obj
Integer count of the number of 3D “cells” in an object	VOLUME	Diagnostic	MTD	MTD 3D obj
Forecast object volume divided by observation object volume	VOLUME _RATIO	Diagnostic	MTD	MTD 3D obj
Weather Regime Index	Weather Regime Index	Diagnostic	METplus Use Case	n/a
Width of the enclosing rectangle (in grid units)	WIDTH	Diagnostic	MODE	MODE obj
X component of object velocity	X_DOT	Diagnostic	MTD	MTD 3D obj
X component position error (nm)	X_ERR	Diagnostic	TC-Pairs	PROBRIRW
X component position error (nm)	X_ERR	Diagnostic	TC-Pairs	TCMPR
y component of object velocity	Y_DOT	Diagnostic	MTD	MTD 3D obj
Y component position error (nm)	Y_ERR	Diagnostic	TC-Pairs	PROBRIRW TCMPR
Zonal Means	Zonal Means	Diagnostic	METplus Use Case	n/a
Zhu’s Measure from observation to forecast	ZHU_FO	Diagnostic	Grid-Stat	DMAP
Maximum of ZHU_FO and ZHU_OF	ZHU_MAX	Diagnostic	Grid-Stat	DMAP
Mean of ZHU_FO and ZHU_OF	ZHU_MEAN	Diagnostic	Grid-Stat	DMAP
Minimum of ZHU_FO and ZHU_OF	ZHU_MIN	Diagnostic	Grid-Stat	DMAP
Zhu’s Measure from forecast to observation	ZHU_OF	Diagnostic	Grid-Stat	DMAP