get rid of arbitrary lower bound date in timeseries call

Author: ehinman

demos/WaterData_demo.ipynb

@@ -176,7 +176,7 @@
    "id": "70ee1da9",
    "metadata": {},
    "source": [
-    "First, let's get our expected date range in order. Note that the `waterdata` functions are capable of taking in bounded and unbounded date and datetime ranges. In this case, we want the start date of the discharge timeseries to be no more recent than 10 years ago, and we want the end date of the timeseries to be from at most a week ago. We can use the notation `{date}/..` to mean that we want all timeseries that end a week ago or more recently. For now, we need to set a lower bound for the beginning of the timeseries though, so we will pick a date that is clearly earlier than when gages were recording data: `1700-01-01/{date}`. This means that we want all timeseries that begin after 1700-01-01 (which is all of them!) and before the upper bound date (in our case, 10 years prior to today)."
+    "First, let's get our expected date range in order. Note that the `waterdata` functions are capable of taking in bounded and unbounded date and datetime ranges. In this case, we want the start date of the discharge timeseries to be no more recent than 10 years ago, and we want the end date of the timeseries to be from at most a week ago. We can use the notation `{date}/..` to mean that we want all timeseries that end a week ago or more recently. Similarly, we can use the notation `../{date}` to mean we want all timeseries that started at least 10 years ago (and thus likely have at least 10 years of data)."
    ]
   },
   {
@@ -208,7 +208,7 @@
     "NE_discharge,_ = waterdata.get_time_series_metadata(\n",
     "    state_name=\"Nebraska\",\n",
     "    parameter_code='00060',\n",
-    "    begin=f\"1700-01-01/{ten_years_ago}\",\n",
+    "    begin=f\"../{ten_years_ago}\",\n",
     "    end=f\"{one_week_ago}/..\",\n",
     "    skip_geometry=True\n",
     ")"
@@ -601,7 +601,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "drpy-no-geopandas",
+   "display_name": "drpy-demo",
    "language": "python",
    "name": "python3"
   },
@@ -615,7 +615,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.14.2"
+   "version": "3.11.14"
   }
  },
  "nbformat": 4,