Sample TimeSeries: Golden Gate Bridge Tides

Source Notebook

Time series of water levels during tides at the Golden Gate Bridge gauge

Details

Time series of water levels and tide types at the oldest still operational water gauge in US at the Golden Gate Bridge.
The available data elements include:
"DataElements"list of available data elements
"Keys"the keys of all the columns in the Tabular representation
"Name"the full name of the resource
"Tabular"corresponding Tabular representation
"Types"the types of all the columns in the Tabular representation

Examples

Basic Examples (2) 

Retrieve the time series:

In[1]:=
ts = ResourceData[\!\(\*
TagBox["\"\<Sample TimeSeries: Golden Gate Bridge Tides\>\"",
#& ,
BoxID -> "ResourceTag-Sample TimeSeries: Golden Gate Bridge Tides-Input",
AutoDelete->True]\)];

Visualize the time series in the form of a Tabular object:

In[2]:=
Tabular[ts]
In[3]:=
(* Evaluate this cell to get the example input *) CloudGet["https://www.wolframcloud.com/obj/e12f45fe-64b6-46d9-8786-0099d1117b3e"]

Data keys and types:

In[4]:=
ResourceData[\!\(\*
TagBox["\"\<Sample TimeSeries: Golden Gate Bridge Tides\>\"",
#& ,
BoxID -> "ResourceTag-Sample TimeSeries: Golden Gate Bridge Tides-Input",
AutoDelete->True]\), "Keys"]
Out[4]=
In[5]:=
ResourceData[\!\(\*
TagBox["\"\<Sample TimeSeries: Golden Gate Bridge Tides\>\"",
#& ,
BoxID -> "ResourceTag-Sample TimeSeries: Golden Gate Bridge Tides-Input",
AutoDelete->True]\), "Types"]
Out[5]=

Analysis (4) 

Select high tides:

In[6]:=
ht = Select[ResourceData[\!\(\*
TagBox["\"\<Sample TimeSeries: Golden Gate Bridge Tides\>\"",
#& ,
BoxID -> "ResourceTag-Sample TimeSeries: Golden Gate Bridge Tides-Input",
AutoDelete->True]\)], Function[#EventType === "HighTide"]];

Extract a two month time window:

In[7]:=
startDate = DateObject[{2022, 5, 1, 0, 0}];
endDate = DateObject[{2022, 7, 1, 0, 0}];
In[8]:=
highTides = TimeSeriesWindow[ht, {startDate, endDate}]
Out[8]=

Get moon phase every 3rd day between the given dates:

In[9]:=
phase = MoonPhase[{startDate, endDate, "Day"}, "Icon"][[;; ;; 3]]
Out[9]=
In[10]:=
phaseplot = DateListPlot[{{#[[1]], 3.2}} & /@ Normal[phase], Joined -> False, PlotMarkers -> ({#[[2]], 0.09} & /@ Normal[phase]), AspectRatio -> 1/7, FrameTicks -> {Automatic, None}];

Compare the levels of high tides with the moon phases:

In[11]:=
Show[DateListPlot[highTides -> "WaterLevel", Joined -> True, Filling -> 0], phaseplot, PlotRange -> {3, 7}, ImageSize -> Large]
Out[11]=

Gosia Konwerska, "Sample TimeSeries: Golden Gate Bridge Tides" from the Wolfram Data Repository (2026)  

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