Skip to end of metadata
Go to start of metadata

Rotational Ground Motion Catalog – General Description

The catalog is a variable in the Matlab format file and it is kept in a file MAT. The structure is an array with named fields that can contain data of various types and sizes. In the file there is only one variable, the file name and variable name are optional.
The format of the rotational ground motion catalog is made in the same manner as a catalog of seismic events.

The variable describing the catalog is a vector of structures, consisting of fields:

  • field – name of field in the catalog (text value);
  • type – type of field in the catalog and way of showing the field (numeric value);
  • val – column array of values. For the text the column is an array type cell with text fields. For the remaining value, the column is a numeric column.
  • unit – description of the unit for individual data (text value).
  • description – short description of the parameter (text value).
  • fieldType – semantic meaning of the field. When some field values are similar/related then fieldType name is entered and for another case [] is entered.

The fundamental is a full catalog i.e. the variable contains the definitions of all specified fields. When some field values are missing then for the numeric data NaN (not specified) is entered and for the text null [] is entered. In the fields "ID", "Time" and at least one of the fields of rotation values in all rows must be present.

Field

Type

Unit

Description

FieldType

Comments

Data format

RID

3


Registration ID

 

required field. ID must be linked to name of signal accelerogram

text

EID

3


Event ID

 

required field. ID should be linked to catalog EID

text

Time

5


Event origin time
required field, Matlab serial numerical timedouble

SID

3


Station ID


required field

text

S_name

3


Station name


required field

text

S_Lat

24,25

deg

Station latitude


required field

double

S_Long

24,25,34,35

deg

Station longitude


required field

double

S_Elevation

10

m

Station elevation

 

required field

double

R_Time

5

days

Registration occurrence time


required field

double

PRV_E

13

rad/s

Peak ground rotational velocity of E component


PRV



required field

double

PRV_N

13

rad/s

Peak ground rotational velocity of N component

double

PRV_V

13

rad/s

Peak vertical ground rotational velocity

double
PRV_H13rad/sPeak horizontal ground rotational velocityPRV
double
PRV13rad/sTotal peak ground rotational velocityPRV
double

PGA_E

13

m/s^2

Peak ground acceleration of E component

PGA


double

PGA_N

13

m/s^2

Peak ground acceleration of N component

PGA


double

PGA

13

m/s^2

Total peak ground acceleration

PGA


double

PVA

13

m/s^2

Peak vertical acceleration

PGA


double

PHA

13

m/s^2

Peak horizontal acceleration

PGA


double

Table 1. The general parameters in catalog MAT format.

The Numbers of Data type:
1 – the real data without limits,
2 – the integer data,
3 – text value,
4 – the real number rounded to 0.1 (shown as 11),
5 – time in Matlab format serial time – the time display format; seconds with accuracy 1/10,
6 – the real data display in an engineering manner with one decimal place, e.g.: 3.5E6, (obsolete, recommended 2cd)
7 – the real data display in an engineering manner with two decimal place, (obsolete, recommended 2cd)
bc – (b and c are code digits) the real data display in fix-point manner with at minimum b places before decimal and c decimal place
e.g. For number 3.149.
10: „3”
11: „3.1”
12: „3.15”
20: „03”
23: „03.149”
1bc– the same manner as bc, but with place for a sign (space for sign „+”, sign - for sign „-”)
2cd– (c and d are code digits), the real data is displayed in an engineering manner, with place for a sign (space for sign „+”, sign ‘-’ for sign „-”), with c decimal place and exponent expressed by d places. The sign in exponent is always displayed.
e.g. For number 0.001:
211: „1.0E-3”
221: „1.00E-3”
212: „1.0E-03”
222: „1.00E-03”
e.g. For number 1000:
211: „1.0E+3”
221: „1.00E+3”
212: „1.0E+03”
222: „1.00E+03”

Back to top

  • No labels