GMS:File Import Wizard Supported File Formats

The File Import Wizard can import various types of data as described in the tables below.

2D UGrid Points

This will create new points in a new UGrid. Optionally the imported points can be filtered using the filter options available by selecting the Filter Options button.

Field	Type	Required	Comments
X	Number	yes
Y	Number	yes
Z	Number	no	Point Zs are set to 0.0 if omitted
Dataset	Number	no	Any number of steady-state or transient datasets can be imported. When importing transient datasets, a dataset name and a time step must be specified for each transient column. Names and time steps are entered into the header row, separated by a vertical slash using the following format: "Name|Timestep". For example, "Dataset1|January 1, 1900". All time steps of a transient dataset should be given the same name.

Examples

These examples can be copied and pasted into GMS.

Steady State

"x"	"y"	"xylene"	"toluene1"	"toluene2"
32.4	74.3	300	999	999
93.4	32.3	84	398	401
83.3	48.2	89	47	52
46.8	29.1	207	147	134

Transient

"x"	"y"	"xylene|01/01/2000 00:00"	"xylene|01/01/2000 12:00"	"xylene|01/02/2000 00:00"
32.4	74.3	300	87	276
93.4	32.3	84	310	187
83.3	48.2	89	148	198
46.8	29.1	207	147	134
40.3	50.1	158	213	32
60.7	52.0	27	41	300
78.7	72.9	264	275	206

3D UGrid Points

This will create new points in a new UGrid.

Field	Type	Required	Comments
X	Number	yes
Y	Number	yes
Z	Number	yes
Dataset	Number	no	Any number of steady-state or transient datasets can be imported. When importing transient datasets, a dataset name and a time step must be specified for each transient column. Names and time steps are entered into the header row, separated by a vertical slash using the following format: "Name|Timestep". For example, "Dataset1|January 1, 1900". All time steps of a transient dataset should be given the same name.

Examples

These examples can be copied and pasted into GMS.

Steady State

"x"	"y"	"z"	"xylene"	"toluene|0.0"	"toluene|2.0"
32.4	74.3	10.1	300	87	999
93.4	32.3	25.7	84	310	187
83.3	48.2	5.3	89	148	198
46.8	29.1	-42.2	207	147	134

Transient

"x"	"y"	"z"	"xylene|01/01/2000 00:00"	"xylene|01/01/2000 12:00"	"xylene|01/02/2000 00:00"
32.4	74.3	10.1	300	387	276
93.4	32.3	25.7	84	310	187
83.3	48.2	5.3	89	148	198
46.8	29.1	-42.2	207	147	134

2D Scatter Points

This will create new scatter points in a new 2D scatter set. Optionally the imported points can be filtered using the filter options available by selecting the Filter Options button.

Field	Type	Required	Comments
X	Number	yes
Y	Number	yes
Label	Text	no
Dataset	Number	no	Any number of steady-state or transient datasets can be imported. When importing transient datasets, a dataset name and a time step must be specified for each transient column. Names and time steps are entered into the header row, separated by a vertical slash using the following format: "Name|Timestep". For example, "Dataset1|January 1, 1900". All time steps of a transient dataset should be given the same name.

Examples

These examples can be copied and pasted into GMS.

Steady State

"id"	"x"	"y"	"xylene"	"toluene|0.0"	"toluene|2.0"
"OW-21"	32.4	74.3	300	999	999
"OW-22"	93.4	32.3	84	398	401
"OW-23"	83.3	48.2	89	47	52
"OW-24"	46.8	29.1	207	147	134

Transient

"id"	"x"	"y"	"xylene|01/01/2000 00:00"	"xylene|01/01/2000 12:00"	"xylene|01/02/2000 00:00"
"OW-21"	32.4	74.3	300	87	276
"OW-22"	93.4	32.3	84	310	187
"OW-23"	83.3	48.2	89	148	198
"OW-24"	46.8	29.1	207	147	134
"OW-25"	40.3	50.1	158	213	32
"OW-26"	60.7	52.0	27	41	300
"OW-27"	78.7	72.9	264	275	206

3D Scatter Points

This will create new scatter points in a new 3D scatter set.

Field	Type	Required	Comments
X	Number	yes
Y	Number	yes
Z	Number	yes
Label	Text	no
Material ID	Number	no
Dataset	Number	no	Any number of steady-state or transient datasets can be imported. When importing transient datasets, a dataset name and a time step must be specified for each transient column. Names and time steps are entered into the header row, separated by a vertical slash using the following format: "Name|Timestep". For example, "Dataset1|January 1, 1900". All time steps of a transient dataset should be given the same name.

Examples

These examples can be copied and pasted into GMS.

Steady State

"id"	"x"	"y"	"z"	"xylene"	"toluene|0.0"	"toluene|2.0"
"OW-21"	32.4	74.3	10.1	300	87	999
"OW-22"	93.4	32.3	25.7	84	310	187
"OW-23"	83.3	48.2	5.3	89	148	198
"OW-24"	46.8	29.1	-42.2	207	147	134

Transient

"id"	"x"	"y"	"z"	"xylene|01/01/2000 00:00"	"xylene|01/01/2000 12:00"	"xylene|01/02/2000 00:00"
"OW-21"	32.4	74.3	10.1	300	387	276
"OW-22"	93.4	32.3	25.7	84	310	187
"OW-23"	83.3	48.2	5.3	89	148	198
"OW-24"	46.8	29.1	-42.2	207	147	134

Observation Data

This creates new feature points in the existing, active coverage. The active coverage must exist and have a steady state observation attribute (such as "Head") defined.

Field	Type	Required	Comments
Point Name	Text	no
X	Number	yes
Y	Number	yes
Z	Number	no
Layer	Number	no	The 3D grid layer the point is associated with.
Measurement	Text	no	Measurement name. Multiple measurements allowed.
Interval	Number	no	Use Interval and Confidence, or Std. Dev. but not both.
Confidence	Number	no	Use Interval and Confidence, or Std. Dev. but not both.
Standard Deviation	Number	no	Use Interval and Confidence, or Std. Dev. but not both.

Example

"id"	"x"	"y"	"z"	"lay"	"hd"	"int"	"conf"
"OBS_Q5"	23.3	44.2	32.2	1	567.5	1.2	95
"OBS_Q6"	83.3	84.3	32.2	1	555.3	1.4	90
"OBS_Q7"	85.3	39.3	33.2	1	999	0	0

Transient Observation Data

This adds time series curves to existing points in an existing observation coverage. The targeted coverage must be the active coverage.

The existing points and the data being imported are matched by Name or ID. If both Name and ID are specified then ID will take precedence.

Both Date and Time can be specified although data can be imported with only Date or only Time specified (at least one of these fields must be specified). If only the Date is specified then the time is set to 12:00:00 AM. If only Time is specified then it is assumed that date/time format is not being used and the time is treated as a relative time.

Field	Type	Required	Comments
Name	Text	no	Either Name or ID must be specified
ID	Text	no	Either Name or ID must be specified
Date	Date	no	Either Date or Time or both must be specified
Time	Time	no	Either Date or Time or both must be specified

Example

"id"	"date"	"time"	"head"	
"OBS_Q5"	12/3/1999	18:00:00	238.5
"OBS_Q5"	1/30/2000	07:38:25	834.7
"OBS_Q6"	3/27/2000	18:00:00	878.3
"OBS_Q6"	12/3/1999	18:00:00	733.2

Well Data

This creates new feature points in an existing coverage. The point types are set to "well" and the flow rate and other data are assigned to the points. A coverage with the Wells attribute must already exist and be the active coverage.

Field	Type	Required	Comments
Name	Text	no
X	Number	yes
Y	Number	yes
Z	Number	no	Elevation of top of well.
Depth	Number	no	Depth to top of screen.
Screen Length	Number	no
Flow Rate	Number	no	Positive for injection, negative for extraction.

Example

"id"	"x"	"y"	"z"	"depth"	"len"	"Q"
"well_1"	123.5	843.2	62.0	51.4	6.0	120.5
"well_2"	134.2	789.4	62.8	60.7	5.4	100.3
"well_3"	147.2	678.1	61.4	110	10.0	300.5

MODFLOW Well Package Data

This text file creates new well boundary conditions in an existing MODFLOW simulation. Both steady state (one flow rate per well) or transient data (multiple flow rates at different times per well) can be imported. With transient data, multiple rows are used to list flow rates at different times (or date/times) and the Well Name field is used to associate the flow rates with the correct well. The times for changes in flow rate do not need to match the model stress period times. Flow rate curves are treated as stair step data and the rate for each stress period is found by temporal (time) interpolation. A prompt will ask if wanting to use the average flow rate for each stress period, or use the flow rate at the beginning of each stress period. Select the option that is best suited for the project.

Field	Type	Required	Comments
Layer	Number	yes
Row	Number	yes
Column	Number	yes
Well Name	Text	yes	Any text used as the well identifier.
Flow Rate	Number	no	Positive for injection, negative for extraction.
Date	Date	no	If neither Date nor Time is specified, all stress periods will have the same Q.
Time	Time	no	Use this field for relative times (starting from 0.0), or if specifying an actual time of day (5:00) to go with the Date field. If neither Date nor Time is specified, all stress periods will have the same Q.

Example

"Layer"	"Row"	"Column"	"Rate"	"Well Name"	"Date"	"Time"
1	2	2	-502	City Well #1	Jan 1, 1940	5:00
1	2	2	-431	City Well #1	July 1, 1940	5:00
1	4	4	0	W5088341	July 1, 1940	5:00
1	4	4	-1000	W5088341	July 1, 1941	6:00

Pumping Data

This adds time series curves to existing points in an existing coverage containing wells. The targeted coverage must be the active coverage. The existing points and the data being imported are matched by name.

Field	Type	Required	Comments
Well Name	Text	yes	Must match an existing well, or else data is ignored.
Date	Date	No	Either Date or Time or both must be specified.
Time	Time	No	Either Date or Time or both must be specified.
Flow Rate	Number	yes	Positive for injection, negative for extraction.
Depth	Number	no	Depth to top of screen.
Screen Length	Number	no

Example

"id"	"date"	"time"	"Q"	
"well_1"	12/3/1999	18:00:00	625.0
"well_1"	1/30/2000	07:38:25	0
"well_2"	12/3/1999	18:00:00	0
"well_2"	3/3/2000	14:48:32	100.0

Borehole Data

This creates new boreholes. Optionally, a borehole folder name can be specified to organize the imported boreholes.

Field	Type	Required	Comments
Borehole Name	Text	yes
X	Number	yes	X location of the contact.
Y	Number	yes	Y location of the contact.
Z	Number	yes	Z location of the contact.
HGU ID	Number	yes	HGU Material below the contact
Material ID	Number	no	Material below the contact.
Horizon ID	Number	no
Description	Text	no	Description of the material (usually from drilling report).

"id"	"x"	"y"	"z"	"material"	"horizon"
"borehole_1"	0.0	0.0	0.0	3	1
"borehole_1"	0.0	0.0	10.0	1	2
"borehole_1"	0.0	0.0	15.0	6	4
"borehole_2"	5.0	0.0	1.0	2	3
"borehole_2"	5.0	0.0	6.0	2	4

Borehole Sample Data

This creates new sample data on existing boreholes, or new sample data on new boreholes if no boreholes with matching names exist. All existing sample data is replaced with that being imported.

Field	Type	Required	Comments
Name	Text	yes	New Borehole Name
X	Number	yes	X location of the borehole.
Y	Number	yes	Y location of the borehole.
Z	Number	yes	Z location of the borehole, in descending order, top to bottom.
Dataset	Number	yes

"id"	"x"	"y"	"z"	"data"
"borehole_1"	0.0	0.0	20.0	495
"borehole_1"	0.0	0.0	15.0	484
"borehole_1"	0.0	0.0	10.0	454
"borehole_2"	5.0	0.0	6.0	259
"borehole_2"	5.0	0.0	1.0	248

Transient Point Data

This creates new time series curve data on existing feature points similar to the "Pumping data" option above. This option is more generic than the "Pumping data" option, however, because it will work with feature points of any type and any attribute (that can be transient) of that feature point.

The existing points and the data being imported are matched by Name or ID or X and Y. The order of precedence for these fields is ID, Name, then X and Y.

Beginning with GMS version 10.1, if multiple multiple points in the coverage have the same name and the imported data are matched by Name then a new time series will be created for all of the points with that name.

Both Date and Time can be specified although data can be imported with only Date or only Time specified (at least one of these fields must be specified). If only the Date is specified then the time is set to 12:00:00 AM. If only Time is specified then it is assumed that date/time format is not being used and the time is treated as a relative time.

Data for more than one attribute can be imported at the same time. The attributes of the active coverage are listed as available fields that can be mapped.

Field	Type	Required	Comments
Name	Text	No	Name or ID or X and Y must be specified.
ID	Number	No	Name or ID or X and Y must be specified.
Date	Date	No	Either Date or Time or both must be specified.
Time	Time	No	Either Date or Time or both must be specified.
X	Number	No	Name or ID or X and Y must be specified.
Y	Number	No	Name or ID or X and Y must be specified.
[Attribute1...]	Number	No	The value of the selected attribute at the given date/time.
[AttributeN]	Number	No	The value of the selected attribute at the given date/time.

"id"	"date"	"time"	"x"	"y"	"Flow rate"
"well_1"	12/3/1999	18:00:00	123.5	843.2	625
"well_1"	1/30/2000	07:38:25	123.5	843.2	0
"well_2"	3/27/2000	18:00:00	134.2	789.4	0
"well_2"	12/3/1999	18:00:00	134.2	789.4	100.0

Transient Node Data

Similar to transient point data but for nodes. Since nodes don't have names they must be matched by ID or XY location.

Field	Type	Required	Comments
ID	Number	No	Either ID or X and Y must be specified.
Date	Date	No	Either Date or Time or both must be specified.
Time	Time	No	Either Date or Time or both must be specified.
X	Number	No	Either ID or X and Y must be specified.
Y	Number	No	Either ID or X and Y must be specified.
[Attribute1...]	Number	No	The value of the selected attribute at the given date/time.
[AttributeN]	Number	No	The value of the selected attribute at the given date/time.

Transient Arc Data

Similar to transient point data but for arcs. Since arcs don't have a single XY location they must be matched by ID or name.

Field	Type	Required	Comments
Name	Text	No	Either Name or ID must be specified.
ID	Number	No	Either Name or ID must be specified.
Date	Date	No	Either Date or Time or both must be specified.
Time	Time	No	Either Date or Time or both must be specified.
[Attribute1...]	Number	No	The value of the selected attribute at the given date/time.
[AttributeN]	Number	No	The value of the selected attribute at the given date/time.

Transient Polygon Data

Similar to transient point data but for polygons. Since polygons don't have a single XY location they must be matched by ID or name.

Field	Type	Required	Comments
Name	Text	No	Name or ID must be specified.
ID	Number	No	Name or ID must be specified.
Date	Date	No	Either Date or Time or both must be specified.
Time	Time	No	Either Date or Time or both must be specified.
[Attribute1...]	Number	No	The value of the selected attribute at the given date/time.
[AttributeN]	Number	No	The value of the selected attribute at the given date/time.

Dataset

Datasets can be imported from columnar text files and added to geometric objects (TINs, UGrids etc.). However text files containing datasets are not imported via the File | Open command (or pasting into the GMS window), but via the Import Dataset command found in the right-click menu of objects in the Project Explorer (objects that can have datasets). The format is similar as that of 2D or 3D scatter points as described above, but with only the dataset columns. The number of dataset values in the file must match the number of locations (points or cells) on the geometric object.

Field	Type	Required	Comments
Dataset	Number	yes	Any number of steady-state or transient datasets can be imported. When importing transient datasets, a dataset name and a time step must be specified for each transient column. Names and time steps are entered into the header row, separated by a vertical slash using the following format: "Name|Timestep". For example, "Dataset1|January 1, 1900". All time steps of a transient dataset should be given the same name.

Steady State Example

"xylene"	"toluene 0.0"	"toluene 2.0"
300	999	999
84	398	401
89	47	52
207	147	134

Transient Example

"xylene|01/01/2000 00:00"	"xylene|01/01/2000 12:00"	"xylene|01/02/2000 00:00"
300	87	276
84	310	187
89	148	198
207	147	134
158	213	32
27	41	300
264	275	206