The case study Heat Wave added

Author: aswind-1h2h3

openDataVisio/appendix.md

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+# Appendix
+
+## List of Identification Keywords
+---
+
+:::{table} Stream and its corresponding values.
+:label: tableStream
+:align: center
+
+| Keyword | Description |
+| -------- | ---- |
+| stream | Identifies the forecasting system used to generated the data when the same meteorological types are archived. |
+
+| Value | Long Name | Reference Time |
+| -------- | ---- | ---- |
+| oper | Operational Atmospheric model (daily archive) | 00 and 12 UTC |
+| enfo | Ensemble prediction system  |
+| waef | Wave ensemble forecast |
+| wave | Wave model | 00 and 12 UTC |
+| scda | Atmospheric model (short cutoff daily archive) | 06 and 18 UTC |
+| scwv | Wave model (short cutoff) | 06 and 18 UTC |
+:::
+
+:::{table} Step and its corresponding values.
+:label: tableStep
+:align: center
+
+| Keyword | Description |
+| -------- | ---- |
+| step | The forecast time step in hours from the forecast base time. |
+
+| Forecasting System | Reference Time | List of Time Steps |
+| -------- | ---- | ---- |
+| HRES | 00 and 12 UTC | from 0 to 144 by 3 and from 150 to 360 by 6 |
+|  | 06 and 18 UTC | from 0 to 144 by 3 |
+| ENS | 00 and 12 UTC | from 0 to 144 by 3 and from 150 to 360 by 6 |
+|  | 06 and 18 UTC | from 0 to 144 by 3 |
+:::
+
+:::{table} Type and its corresponding values.
+:label: tableType
+:align: center
+
+| Keyword | Description |
+| -------- | ---- |
+| type | Specifies the type of field. |
+
+| Value | Long Name |
+| -------- | ---- |
+| fc | Forecast |
+| ef | Errors in first guess  |
+:::
+
+:::{seealso}
+All of the keywords which can be used to retrieve real-time data are explained [here](https://confluence.ecmwf.int/display/UDOC/Keywords+in+MARS+and+Dissemination+requests).
+:::