A tool for advanced processing, comparison, graphing and interpretation of dam safety related surveillance data in multiple formats.
New here? Press ⓘ How to (under the tool name) for a walkthrough. Your data stays in this browser: Save project keeps your work as a .json file you can re-open with Load project.
Section 1 · Project and Data
Set up your project and get your data ready: upload, name your series, and create any calculated series you need.
▾Step 1 · Setup Project and Upload Data
Upload your data to get started.
Download the template, add your data, then drag and drop it here. Alternatively, press "Load sample project" to explore the tool: choose sample data only, or a full project including worked graphs. To refresh your data later, upload an updated file: new series are added, and for series with the same name you choose whether to replace them. Your graphs and settings are kept.
Click to choose a file, or drop it here
.xlsx, .xls, .csv or .tsv — reads the Data tab: Date/Reading pairs (one pair per instrument), or a table with date/time in the first column and one instrument per column
▾Step 2 · Global Series Settings
Set chart names or key values for each series.
Chart Name Override: the name used on chart axes and legends only. Lists in the tool keep the original name from your file.
Add reference value: sets a key value (e.g. FSL, MOL) that can be toggled on or off per chart.
No data uploaded — go to Step 1
▾Step 3 · Synthesise Data (Optional)
Create new series calculated from your data.
Daily summary: one value per day from frequent readings (time-weighted average, minimum, maximum, last or total).
Trailing total: running total over the last N days (e.g. 5-day rainfall).
Trailing average: running average over the last N days (e.g. 5-day average lake level).
Interpolate: fill the days between readings with straight-line values.
Date range filter: keep only the readings inside a date range.
Filter A by B: keep readings of one series only when another series meets a condition.
No data uploaded — go to Step 1
Calculated, not measured. A value is only produced where every input it needs exists — gaps are never filled or assumed. Your original series are never changed; each run adds a new series, marked Synthesised in Step 2.
Section 2 · Chart Builder
Build, preview, and save your charts here, using the data prepared in Section 1.
Window too narrow for side by sideLayout
▾Step 4 · Chart Type and Series
Choose which series appear on this chart, and how it's laid out.
Pick a chart type, then use '+ Add series' to bring in data.
This chart is an uploaded image, so series and chart-type settings don't apply. Annotate it in Step 6, and set an optional title in Step 5.
Set order of series by dragging or using arrows. Order controls location of plot within stack.
No series added — add one using the +Add series button.
Add at least two series using '+ Add series'. The first one becomes the Comparator; drag to change it.
▾Step 5 · Chart SettingsTime series
Leave any value blank for automatic. The chart updates as you type.
Uploaded image: only the chart title (optional) applies here. Annotate the image in Step 6.
Whole chart
Give the chart a title and, optionally, limit the date range shown on the X axis. Leave the dates blank to show the full record.
The axis on which the Comparator should plot.
Event markersDates marked across the chart, e.g. an outage or major flood.
Highlight periodsShaded date ranges down the whole chart, e.g. a flood, drawdown or construction period.
Chart reference valuesThis chart only: a labelled line across the chart at a fixed value, e.g. a trigger level or design value.
Envelope display
Choose which axis the readings plot on. The instruments are spaced along the other axis, in the order set in Step 4. Average = mean of the readings in the date range (with "Count each day once" ticked, the mean of each day's average); Current = the latest reading in the date range; percentiles use linear interpolation (as Excel's PERCENTILE.INC).
Show on chart
Date Banding
Split the scatter into consecutive date bands, each drawn in its own colour.
Tip: compare the slopes between bands. R² naturally drops when a band covers only a narrow range of values.
Stack Settings · Axes & Secondary Data
Set axis min/max and tick increments for each stack, overlay secondary data with "+ Add secondary data", and choose which reference lines to show, or add one for this graph only. Leave axis values blank for automatic.
No series added yet — add one in Step 4.
Graph Preview and Management
Preview and annotate your chart, then save it with the buttons in the bar above. Saved graphs are in Step 7.
Quick reviewFolderGraph
Step 6 · Chart
Your chart, ready to annotate, copy and save.
Updates automatically as you change Steps 4 and 5. Use the tool strip above the chart to zoom, draw shapes, add text boxes or lettered notes, and copy the chart for reports. Save it with the buttons in the bar at the top of Section 2.
No data uploaded — go to Step 1
ⓘClick legend entries to show or hide them
R² info ⓘR² is the share of the scatter that the straight line of best fit explains, from 0 (none) to 1 (all).
R² shows how consistent the relationship is, not how big it is. See Step 5 (under each line of best fit) for its slope and the number of paired readings (n).
Text boxes: click "Add text box", then click anywhere on the chart to place it. Double-click a placed box to edit its text (Enter for a new line; click away or Ctrl+Enter to finish); drag to move it. Shapes: pick the line, box or circle tool in the strip, then drag on the chart.
Notes
Click "Add note" in the tool strip above the chart, then click the chart where it applies. Notes are lettered (A), (B), (C)… in list order; drag or use the arrows to reorder and the letters on the chart update.
▾Step 7 · Available Graphs
Save chart configurations to come back to later, and organize them into folders.
Save a chart from Step 6 with a name — it remembers everything. Group related graphs into folders by dragging them in.
Uploaded images
No saved graphs yet — build one in Steps 4–6, then click 'Save as new'.
Section 3 · Instrumentation and Interpretation
Summarise the instruments installed and how often they are read, then record your engineering commentary on the saved graphs. Save your project to keep everything.
▾Step 8 · Instrumentation Summary (Optional)
Tabulate the instruments installed and their monitoring frequencies (optional).
Instrumentation details: instruments grouped under headings (e.g. General, Seepage, Pore Pressures). Drag rows or whole groups to reorder.
Monitoring frequencies: current and recommended frequency for each monitoring type.
Paste table: copy an existing table from Word and paste it in. Copy table pastes back into Word as a formatted table.
▾Step 9 · Interpretation
Record your engineering commentary for an instrument or a group.
Add interpretation: one for a single instrument, or for a group (e.g. groundwater).
Add linked graph: choose the saved graphs it refers to.
Fill in the boxes. Drag or use the arrows to change the order.
Click to open interpretation
Name this graph
Please enter a name.
Add a linked graph
Click a saved graph to link it. You can add several.
Add series to this chart
Tick the series to add, then press Add.
Every loaded series is already on this chart.
Automatic backups
Backups are kept only in this browser on this computer, for safety. They are not a substitute for saving your project to a file.
Add secondary data
Choose the series to overlay on this stack.
Overwrite this graph?
Series already exists
Paste table
In Word, select the whole table (and any notes under it), copy it, then click in the box below and paste (Ctrl+V). The rows are added to the table in the tool; heading rows become groups.
Nothing pasted yet.
Upload an external graph or image
Choose a PNG, JPEG, GIF or WebP file, e.g. a graph from another program, a marked-up photo or a plan. It is saved as an Image graph in Step 7 and opened in Step 6, where you can add shapes, text boxes and notes. Click its name under "Uploaded images" later to start another annotated copy.
PDFs can't be used directly: export the page as a PNG first. Large images are reduced to 2,500 px on the long side.
No file chosen
Shrink this image?
Click the picture to choose where to compare. Both views below show the same spot at 100% zoom, so you can check that small text stays readable.
Full resolutionShrunk
Note
Copy data
Load sample project
What would you like to load? This replaces anything currently loaded.
Surveillance Data Analysis Tool Licence Agreement
Version 1.0 · draft for legal review · Please read before using the Surveillance Data Analysis Tool
The Surveillance Data Analysis Tool is free to use, but it comes with conditions:
It is a data analysis aid, not engineering advice. Results can be wrong.
You must check every result independently. You are solely responsible for how you use it.
It is provided "as is", without warranty. To the extent the law allows, Dam Safety Consulting is not liable for any loss from its use.
You may not copy, modify, resell or build on the Surveillance Data Analysis Tool.
These points summarise the full Surveillance Data Analysis Tool Licence Agreement (version 1.0), which applies. Read the full licence
The Surveillance Data Analysis Tool can only be used once you accept the licence. You can close this page, or review the licence again.
Your work is kept in one project file. Save it with Save project at the top of the page: see Saving.
How the tool is laid out
A broad overview of the tool is presented; each step is covered in detail further on. Work through steps 1–9 in order, each builds on the last (some steps are optional). Click any step in this section to jump to the detail.
Section 1 · Project and data
Set up the project (dam, consequence category, author), load your readings, and create any calculated series, such as cumulative rainfall or trailing averages.
1Setup project and upload data
Name the project, bring in your readings and add reference drawings.
2Global series settings
Override series names for chart display and set reference values, once per series; both are then available on every graph.
3Synthesise data (optional)
Make new series calculated from your data, such as 5-day trailing rainfall totals.
Section 2 · Chart builder
Create, save and organise your graphs: pick one of five chart types, choose the series, tune the title, dates, axes and lines, and organise graphs into folders.
Widescreen or dual screens? Screen layouts let you see the controls and the graph at the same time.
4Chart type and series
Choose the graph type (time series, scatter etc) and which series to present.
5Chart settings
Fine-tune the graph: adjust axes and add key reference values or lines of best fit.
6Chart
View and mark up your graph with notes, text boxes or shapes. Graphs may be saved and organised in Step 7.
7Available graphs
Keep and organise your graphs into folders or sets. Also allows upload of external graphs and images (PNG, JPG, GIF or WebP).
Section 3 · Instrumentation and interpretation
Record the instruments available and how often each is read. Write interpretations for each instrument type or set, link the relevant graphs, and describe trends and responses (e.g. to rainfall or lake level). Export everything to Word as the basis of a report.
8Instrumentation summary (optional)
Tabulate the instruments and how often they are read.
9Interpretation
Write up each instrument, with the graphs it is based on.
Starting a new project
Load your data, build and save your graphs, then write up the review. This walkthrough follows that order, one step at a time.
New to the tool? Load sample project in Step 1 loads sample data, or a finished project to explore.
Section 1 · Project and data
Set up the project, load your readings and reference drawings, and create any calculated series.
Before Step 1
Prepare your data
The tool reads a spreadsheet (.xlsx, .xls, .csv or .tsv) set out in one of two layouts.
Layout 1: Date / Reading pairs
A downloadable template in this layout is available in Step 1. Each instrument has two columns, date and reading, as shown in .
Lake Level (RL m)
V-Notch 1 (L/min)
Date
Reading
Date
Reading
01/01/2020
582.8
03/01/2020
12.4
02/01/2020
582.9
10/01/2020
12.9
Recommended .xlsx input format
Layout 2: one shared date column
An alternative that suits exports from some data systems: a single date/time column common to all instruments, then one column per instrument.
Date/Time
Lake Level
V-Notch 1
Rain
01/01/2020 09:00
582.8
12.4
0
Alternative input data format
In either format, blank cells, or text such as NA, are fine: those readings are left out of plots, and any text values are listed in Import details.
Step 1
Set up the project and load the data
Step 1 provides inputs to set up your project, and imports your data. Details on key inputs are shown under below.
Click to choose a file, or drop it here .xlsx, .xls, .csv or .tsv
Key inputs presented in Step 1
Project details: enter your dam name, consequence category, author and project. These are shown on any Word export from the tool and inform the default save file name.
Download template: downloads a surveillance data input template for new projects.
Drop your completed Excel data file on the box, or click inside to browse and select.A line under the box will show how many series loaded and flag any warnings.
Load sample project (optional) allows loading sample data or a sample worked example.
Upload reference drawing: upload instrumentation drawings or photos that show users or reviewers where instruments are located. These are saved with your project file and can be referred to throughout the tool with View reference drawing.
New data later?Drop updated file on the same box. New series are added, and for a series with the same name you choose whether to replace it or add new readings. Graphs and settings are kept.
Step 2
Set global series settings
Use Step 2 to override the series names from your data import, and to link key reference values to each series. (A–E) shows the controls.
16 series5 reference values! 3 series have readings to check · show all
SeriesChart name Reference values Points
RES LVL RL mLake Level (RL m)▾ 2 values1772 pts!✕
Reference values for Lake Level (RL m). Switch each one on or off per graph in Step 5.
Namefor your recordsPlot labelprinted beside the lineValuein the series' units
↳Full Supply LevelFSL596.8✕
↳Minimum Operating LevelMOL566.32✕
↳+ Add reference value
⚠ 3 readings sit far from the rest of the record: 0 on 05/12/2016, 499.26 on 20/03/2017, 0.341 on 04/05/2017. Check for a typo or sensor error.
Key controls presented in Step 2
The imported series name (fixed).
Chart name: an optional name for chart plotting (re-names on all charts). Lists in the tool keep the name from your file.
Reference values: click to add static values you may need on several graphs (e.g. a lake Full Supply Level, or a V-notch weir alarm trigger level). These may be toggled on/off per graph using a checkbox in Step 5.A series with none shows + Add. Hover the in the column heading for an example.
Reference value inputs: open below the series as a small table. Enter a name (for you only), the label to plot on charts, and the value (e.g. 596.8 m, or 15 L/min).
Data warnings: an orange ! at the right of a row means some readings sit far from the rest of the series' record (e.g. a 0 m reading in a lake that normally sits between MOL and FSL). Click it to show them with their dates, or use the summary above the table to show them all. Check them at the source: the tool never changes them. Rows with unreadable dates or non-numeric values are skipped on import and listed in Import details in Step 1.
The button at the left of each row copies that series (dates and readings) to paste into Excel. ✕ deletes the series from the whole project, after asking.
Renaming a series from your filePress ✎ beside a series name to rename it. The tool asks whether to remember the old name too. Choose Remember both if your data file will keep using the old name: an updated upload then updates this series instead of adding a new one. A ⇄ beside the name shows a series has a remembered name.
Step 3 · optional
Calculated series
Step 3 allows new series to be calculated from existing data, such as trailing rainfall totals. This may be revisited at any time and data will become available throughout the tool.
Per day
Daily summaryInterpolate
Running window
Trailing totalTrailing average
Filter
Date range filterFilter A by B
SeriesRainfall (mm/day)
Number of days15
Preview
Preview (nothing has been created yet)
Input: 3,653 readings on 3,653 days.
Values produced: 3,639 (15/01/2016 to 31/12/2025).
Not produced: 14 days, because at least one of the 15 days in the window had no reading.
Name of new seriesRainfall – 15-day total
Create series
Key controls presented in Step 3
Pick a tool. They are grouped as Per day, Running window and Filter; hover over one for a one-line description.
Choose the series and settings.
Press Preview.
Check the preview: it shows how many values will be produced, and why any days were left out. Nothing is created yet.
Enter the name of the new series, then press Create series.After pressing Create series, this data will appear in the list in Step 2 marked “Synthesised”.
NoteThe tool only creates values where all readings required exist. It won't fill gaps without explicit instruction (i.e. interpolation).
Section 2 · Chart builder
Create, save and organise your graphs: pick one of five chart types, choose the series, tune the title, dates, axes and lines, and organise graphs into folders.
Before you start
Choose your screen layout
You can change the layout to suit your screen setup at any time. Options are presented in .
Stacked (standard): settings sit above the chart, so you need to scroll to see changes to graphs.
Side by side: settings left, chart right, so you see changes as you make them. You need a window over about 2,100 px wide (a large or ultrawide monitor, or zoom the browser out).
Two monitors: press Undock in the graph (Step 6) to move the chart, with its annotation tools, to its own window on your second screen. Redock brings it back.
The three screen layouts
New graph (not saved yet)↓ Chart↑ Chart settingsLayout Stacked Side by side Undock chart
Screen controls, in the Section 2 bar
Use the Layout switch to change layout. It only appears when your window is wide enough for side by side.
Press Undock chart to move the chart to its own window, the same as Undock in Step 6. It changes to Redock chart to bring it back. While the chart is undocked the tool stays stacked; side by side returns when you redock.
In the stacked layout, ↓ Chart and ↑ Chart settings jump between the settings and the chart.
Note: this bar will attach to the top of your screen once you scroll past the header while editing Section 2.
Step 4
Choose the chart type and series
Use Step 4 to choose the type of graph and the series it shows ().
Over time
Time series (stacked)Time series (overlaid)
Against another series
ScatterScatter by Band
Across instruments
Envelope Plot
A series of horizontally aligned charts, each with its own independent axis.
+ Add seriesDrag rows (or use the arrows) to reorder. Top of the list = top plot.
⠿1 · topLake Level (RL m)↑↓✕
⠿2Ob.Well.1 (RL m)↑↓✕
⠿3Ob.Well.2 (RL m)↑↓✕
Key controls presented in Step 4
Pick the chart type. The types are grouped by the question they answer: how readings change over time, how one series moves against another, or how instruments compare across a section. More details are available by hovering over each option: what it does, an example, and Tell me more for how to build it.
Press + Add series, tick the series you want and press Add.The chart appears in Step 6 straight away.
Drag rows (or use the arrows) to set the order. The tag on each row shows what the order means (1 · top is the top panel). Scatter charts show two slots instead: the Comparator (what the others are plotted against, e.g. lake level) and the Response series (e.g. piezometers). The Comparator is simply the series everything else is plotted against: usually the driver (lake level, rainfall), but not always, e.g. one V-notch against several rainfall totals. It was called the Primary in earlier versions. Scatter by Band takes one pair; use ⇅ Swap to switch which is the Comparator. The Comparator row also sets where it plots: plots on X (horizontal) / Y (vertical). Envelope plots have the same choice above the list: Readings plot on.
✕ removes a series from this graph only. It stays in the project, and on any other graphs that use it.
Step 5
Adjust the chart settings
Use Step 5 to fine-tune the graph ( and ). Every chart type uses the same order: Whole chart, the type's own options (Banding, or Envelope display and Date periods), Axes, then Per series settings, a card for each series. Axis and series cards fold to a one-line summary; click a header to open it. Axis cards are named by what is on them, e.g. X axis · Lake Level (RL m). Which axis the Comparator (or an envelope's readings) plots on is chosen in Step 4. Leave a box blank to keep it automatic; the chart updates as you type.
Whole chart
Chart titleOb.Well.1–3 Time History
▸ Event markers and shadingno event markers
Axes
▾Bottom X axis (dates)
Date range
From date01/01/2010
To datedd/mm/yyyy
Full record for the selected series: 24/04/1961 to 29/09/2025. Leave either date blank to use the start or end of the record.
Key controls presented in Step 5: whole chart and date axis
Enter a Chart title to print on the chart.
Open Event markers and shading to add vertical lines at dates (a flood, a drain clean) or shade periods.
On time series, the dates are the chart's bottom axis: open Bottom X axis (dates) under Axes and set From / To to choose the period shown. Leave either blank to use the start or end of the record. Or choose Last and a number of years: the period then ends at the latest reading and moves forward when you upload new data. (On scatter and envelope charts, From / To stay under Whole chart, as they choose which readings are used.)
Per series settingsCollapse allExpand all
▾1 · topLake Level (RL m)
Y axis limitsMin555Max605Reset to auto
Overlays
Secondary data+ Add secondary data
Trailing lineNoneover30days
Line of best fitOn (trend over time)Slope and n in legendFit all readings
Set Y axis limits to focus on the normal range. Reset to auto clears them.
Secondary data overlays another series on this panel (e.g. manual readings over a telemetered record). Trailing line draws a trailing average or total over the series, on this graph only. The axis title and intervals sit at the top of the card.
Line of best fit: tick On (trend over time) to draw a straight trend line through the series. Its statistics show under the controls, and in the legend:
R²: how consistently the readings follow the line, from 0 (not at all) to 1 (exactly), labelled None (below 0.05), Weak (0.05–0.15), Mod. (0.15–0.5) or Strong (above 0.5). R² shows how consistent the trend is, not how big it is.
Slope: the rate of change, per year in the series' units (e.g. +0.12 m per year). On a scatter it shows the change in the Response series against the Comparator (e.g. a piezometer rising 0.3 m per m of reservoir level).
n: the number of readings used, e.g. 714 of 796 when some are trimmed.
Slope and n in legend: untick to show only R² in the legend.
Fit all readings uses every reading. Trim outliers fits a first line, then keeps only readings between two percentiles of their distance from it: 5–95 trims both sides; 0–90 keeps every low reading and drops the 10% furthest above. A floor or roof (e.g. many zero flows) is kept. Left-out readings stay on the chart, marked ×.
Reference lines: tick the Step 2 values you want on this graph.
A local line, for this graph only: enter a label and value. Save as global moves it to Step 2, so any graph of the series can show it.
Press + Add local line to add another.
Folding series cardsEach series card starts folded to a one-line summary (e.g. auto axis · no overlays). Click a card's header (▸ at its left) to open it, and click it again to fold it. Opening a card shows all of its settings. Collapse all and Expand all, top right of Per series settings, fold or open every card at once. The number on each card (1 · top, 2…) is its order from Step 4.
A panel looks flat?One odd reading (e.g. a 0 in a lake level) stretches the automatic axis and squashes everything else. Open that series card and set Min and Max to the normal range. Readings outside the limits are cut off, not deleted.
Step 6
Annotate and copy the chart
Step 6 shows your graph. Mark it up, copy it into a document, or move it to its own window ().
View reference drawing
Graph zoom / markup tools:
Add text boxAdd noteColourCopyCopy (Hi-Res)⧉ Undock
Key controls presented in Step 6
Add text box, then click the chart. Double-click to edit; drag to move.
Add note, then click the chart: a lettered marker, with its text listed under the chart.
Press Copy, then paste into a document.
Use Copy (Hi-Res) for report figures.
Press Undock to move Step 6 to its own window, e.g. on a second screen.
The zoom / markup tools zoom, pan and draw lines, boxes and circles. Double-click the chart to reset the view.
Saving a graph
Save the graph
Save each graph you want to keep, so you can review it in Step 7 and link it to an interpretation in Step 9 ().
✎ New graph (not saved yet)New graphSave as new graph
Name this graph
V-Notch 1 Time History with Lake Level and Rainfall
Save into folderSeepage (V-Notch 1)
CancelSave
Graph save controls, in the Section 2 bar
Shows the graph you are editing. The bar stays at the top while you scroll Section 2.
Press New graph to start again with an empty chart.
Press Save as new graph, name it and choose a folder.It appears in Step 7.
Once a graph is saved, you can select it, make edits, then press Save graph to overwrite it with your new settings. Use Save as new graph to save a new version.
Tip: variants of a graphTo make a similar graph with minor changes (e.g. a 20-year and a 5-year window), press Save as new graph and give it a new name, then update the chart title, make your changes and press Save graph. Both versions are kept.
Step 7
Organise and review your graphs
Use Step 7 to organise your saved graphs and look back through them ().
+ New folderUpload graph or image
▾ Seepage (V-Notch 1)5
V-Notch 1 Time History with Lake Level and RainfallTS
V-Notch 1 (Dry Weather) vs Lake LevelSC
QUICK REVIEWSeepage (V-Notch 1)◀V-Notch 1 (Dry Weather) vs Lake Level▶3 of 5
Key controls presented in Step 7
Your saved graphs, in folders. Click a graph to open it; drag it to move it.
Press + New folder to add a folder, e.g. one per instrument type.
Use Upload graph or image to add a figure made elsewhere, so you can link it in Step 9.
Use Quick review (above Step 6) to step back…
…and forward through a folder. The fastest way to look through every graph.
The same graph for several seriesPress Batch graphs… (or ▾ beside Save as new graph, then Repeat for other series…) to make one graph per series in one go, e.g. one per V-notch. Start from the graph on screen, another saved graph, or a quick time series or scatter. Pick the series to swap, tick the series to make graphs for, set a name pattern such as “{series} Time History” and a folder. Each new graph is a normal saved graph you can open and change; notes and shapes are not copied. One Undo removes the whole batch.
Linked graphsWith Keep linked ticked, the new graphs follow the graph you started from (the master). Change the master and save it, and the tool offers to update them all. Each linked graph keeps its own notes, shapes, text boxes, title, and the axis range and reference values of its own series. If you change another setting on a linked graph, the tool asks whether to apply it to all of them or make that graph standalone. Step 7 marks masters and the graphs that follow them.
Section 3 · Instrumentation and interpretation
Record the instruments available and how often each is read. Write interpretations for each instrument type or set, link the relevant graphs, and describe trends and responses (e.g. to rainfall or lake level). Export everything to Word as the basis of a report.
Step 8 · optional
Summarise the instrumentation
Use Step 8 to record the instruments at the dam and how often each is read (). It starts folded: click its title to open it.
Table titleInstrumentation details
Instrument
Count
Comment
Source
⚑
General
+ Add row
Storage level (radar)
1
At the intake; continuous.
Instrumentation plan
✓
Rainfall
1
Left abutment, daily totals.
2015 CSR
Seepage
+ Add row
V-Notch 1
1
At the downstream toe.
2020 DSR
+ Add groupPaste table from WordCopy table
Key controls presented in Step 8
Give the table a title.
Sort your instruments into groups (General, Seepage…), one row per instrument, with its Source (e.g. 2020 DSR). + Add row sits on each group heading. Tick ⚑ to highlight a row.
Press + Add group for each new group.
Already have a table? Use Paste table from Word to bring it in.
Use Copy table to paste it back into Word, formatted.
Step 9
Write the interpretation
Use Step 9 to write an interpretation for each instrument or group, with the graphs it is based on ().
V-Notch 1 (Seepage)5 linked graphs
+ Add linked graph▾ Expand all▸ Collapse all
▾ V-Notch 1 Time History with Lake Level and RainfallTS↑ ↓ ✕
▾ V-Notch 1 (Dry Weather) vs Lake LevelSC↑ ↓ ✕
Telemetered?No – manual weekly readings.
Response to lake?Flow rises with lake level above ~RL 582.6.
DiscussionThe baseline floor is stable over 20 years…
Key controls presented in Step 9
Name it, e.g. "V-Notch 1 (Seepage)".
Press + Add linked graph and pick the saved graphs.
Linked graphs open with the interpretation. Click one to fold it away, or use Collapse all / Expand all; drag to reorder. The coloured tag shows its chart type (TS, TO, SC, BD, EN).
Fill in the boxes, from telemetry through to recommendations.
Linked graphsLinked graphs can be expanded in the interpretation, and you can link graphs from any folder. To change one, open it from Step 7, edit it in Steps 4–6 and press Save graph: the interpretation updates automatically.
Finish
Export to Word
When your write-up is done, export it to Word as the basis of your report ().
Choose where the graphs go, and their image quality.
Export.A .docx with the tables, interpretations and every linked graph, numbered as figures.
You'll find Export to Word at the bottom of Step 8 and beside + Add interpretation in Step 9.
Saving
Save the project
Use the buttons at the top of the page to save and open the whole project (): one .json file on your computer holding the data, graphs, tables and interpretations. Nothing is kept on a server.
How toSave project ●Save as versionLoad projectClear – start new
Project save and load buttons, at the top of the page
Press Save project to write the file. An amber dot means you have unsaved changes.
Use Save as version to save a dated copy and keep earlier analyses.
Use Load project to open a saved file, exactly as you left it.
Use Clear – start new to empty the tool for another dam.
The bar at the top of the screenOnce you scroll down, a slim bar keeps How to, Save project and Load project in reach, with the other project buttons under ⋯. Press ⌃ to hide it, and Show bar to bring it back.
Graphs are saved separatelySave each graph with Save graph or Save as new graph (the bar at the top of Section 2), then save the project to keep them in the file.
Watch outThe browser keeps a few automatic backups, but they are lost if its data or cache is cleared. Always save to a file.
