OPERA DSWx-HLS EGIS Services

_quarto.yml

@@ -212,12 +212,17 @@ website:
                         href: quarto_text/SWOT.html#workshops-webinars
           - section: quarto_text/GIS.qmd 
             contents:
-              - text: "NASA Earthdata (EGIS) Services"
-                href: notebooks/GIS/SWOT_Rivers_EGIS_Services.md
+              - section: "NASA EGIS"
+                href: quarto_text/GIS.html#nasa-earthdata-gis-egis
+                contents:
+                  - text: "SWOT"
+                    href: notebooks/GIS/SWOT_Rivers_EGIS_Services.md
+                  - text: "OPERA DSWx"
+                    href: notebooks/GIS/OPERA_DSWx-HLS_EGIS_Services.md
               - text: "StoryMaps"
-                href: quarto_text/GIS.html#gis-storymaps-of-select-datasets
-              - text: "GIS Walkthroughs"
-                href: quarto_text/GIS.html#gis-walkthroughs
+                href: quarto_text/GIS.html#storymaps
+              - text: "Other GIS Tutorials"
+                href: quarto_text/GIS.html#other-gis-tutorials
               - text: "GIS Jupyter Notebook Tutorials"
                 href: quarto_text/GIS.html#gis-jupyter-notebook-tutorials
           - section: quarto_text/CloudvsLocalWorkflows.qmd

notebooks/GIS/OPERA_DSWx-HLS_EGIS_Services.md

@@ -0,0 +1,15 @@
+# Earthdata GIS OPERA DSWx-HLS Image Services
+
+The OPERA DSWx-HLS Image Service is available in both the ArcGIS REST Endpoint and Open Geospatial Consortium (OGC) Endpoint.
+
+The following are the available service endpoints for each OPERA DSWx-HLS version and type:
+
+### OPERA_L3_DSWX-HLS_V1_B01_WTR (01/01/23 - Present)
+[Image Service](https://gis.earthdata.nasa.gov/portal/home/item.html?id=59caecb96b5b42dd85aa3001a10f7786)
+
+[Web Map Service (WMS)](https://gis.earthdata.nasa.gov/portal/home/item.html?id=7e40454ca08d4eb39d5e6693109367eb)
+
+### OPERA_L3_DSWX-HLS_V1_B03_CONF (01/01/23 - Present)
+[Image Service](https://gis.earthdata.nasa.gov/portal/home/item.html?id=f417d9093b714c06951f4c4bdf28e64e)
+
+[Web Map Service (WMS)](https://gis.earthdata.nasa.gov/portal/home/item.html?id=f2c0db6677c34d739d6591cc9a63bfb7)

notebooks/GIS/OPERA_EGIS_access.ipynb

@@ -0,0 +1,146 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Earthdata GIS OPERA DSWx-HLS Image Service Access\n",
+    "<br>\n",
+    "\n",
+    "Author(s): Nicholas Tarpinian, Catalina Taglialatela *(NASA PO.DAAC)*\n",
+    "\n",
+    "_Created: 2026-06-01_ <br>\n",
+    "_Last updated: 2026-06-23_\n",
+    "\n",
+    "Versions used: *ArcGIS Pro 3.6.1*\n",
+    "\n",
+    "## Summary\n",
+    "\n",
+    "This guide shows how to connect using GIS applications to the recently released NASA [Earthdata GIS (EGIS)](https://gis.earthdata.nasa.gov/portal/home/index.html) Image Service for Observational Products for End-Users from Remote Sensing Analysis (OPERA) Dynamic Surface Water eXtent (DSWx) Harmonized Landsat Sentinel-2 (HLS), namely the [OPERA_L3_DSWX-HLS_V1](https://www.earthdata.nasa.gov/data/catalog/pocloud-opera-l3-dswx-hls-v1-1.0) collection.\n",
+    "\n",
+    "- [OPERA_L3_DSWX-HLS_V1_B01_WTR](https://gis.earthdata.nasa.gov/portal/home/item.html?id=59caecb96b5b42dd85aa3001a10f7786) \n",
+    "\n",
+    "- [OPERA_L3_DSWX-HLS_V1_B03_CONF](https://gis.earthdata.nasa.gov/portal/home/item.html?id=f417d9093b714c06951f4c4bdf28e64e)\n",
+    "\n",
+    "\n",
+    "For more details on these services and the latest available services, please visit the EGIS OPERA Image Service page (_insert link when ready_).\n",
+    "\n",
+    "\n",
+    "------"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Learning Objectives:\n",
+    "- Connecting to the OPERA DSWx-HLS Image Service through the Map Viewer and ArcGIS Pro (QGIS has limitations - see end of tutorial).\n",
+    "- Exploring the collection metadata and visualizing the data in an interactive map.\n",
+    "\n",
+    "------"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Map Viewer\n",
+    "\n",
+    "You can quickly view the OPERA DSWx-HLS Image Service through the dataset landing page ([WTR landing page](https://gis.earthdata.nasa.gov/portal/home/item.html?id=59caecb96b5b42dd85aa3001a10f7786), [CONF landing page](https://gis.earthdata.nasa.gov/portal/home/item.html?id=f417d9093b714c06951f4c4bdf28e64e)) by selecting `Open in Map Viewer`.\n",
+    "\n",
+    "<nop/> <div style=\"width: 700px;\">![](../../images/EGIS_OPERA_Images/OPERA_EGIS_MapViewer_1.png)</div>\n",
+    "\n",
+    "Once open you can **expand the time scale** at the bottom to view the observed granules available.\n",
+    "\n",
+    "<nop/> <div style=\"width: 1200px;\">![](../../images/EGIS_OPERA_Images/OPERA_EGIS_MapViewer_2.png)</div>\n",
+    "\n",
+    "For the **pop-ups** to display correctly when selecting a granule: on the right hand side, select the `Pop-ups` option; then de-select both `Ignore NoData areas` and `Display topmost image only` to get all availble observations for the selected granule.\n",
+    "\n",
+    "<nop/> <div style=\"width: 500px;\">![](../../images/EGIS_OPERA_Images/OPERA_EGIS_MapViewer_3.png)</div>\n",
+    "\n",
+    "The inital view once loaded will showcase the **overview layer**. When zooming in, the **source raster** will become available on the area of interest. Selecting a granule will pop up the granule attributes with the latest observations. In the corner of the pop-up, it will highlight the record amount available based on the time scale selected.\n",
+    "\n",
+    "<nop/> <div style=\"width: 500px;\">![](../../images/EGIS_OPERA_Images/OPERA_EGIS_MapViewer_4.png)</div>\n",
+    "\n",
+    "To further explore the data, you can filter/query the data by selecting the `Filter` option on the right hand side. This will allow you to query the data based on the available attributes.\n",
+    "\n",
+    "<nop/> <div style=\"width: 150px;\">![](../../images/EGIS_OPERA_Images/OPERA_EGIS_MapViewer_5.png)</div>\n",
+    "\n",
+    "<nop/> <div style=\"width: 1000px;\">![](../../images/EGIS_OPERA_Images/OPERA_EGIS_MapViewer_6.png)</div>"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## ArcGIS Pro\n",
+    "\n",
+    "To connect to the Image Service in ArcGIS Pro, first grab the endpoint URL: https://gis.earthdata.nasa.gov/image/rest/services/C2617126679-POCLOUD/OPERA_L3_DSWX-HLS_V1_B01_WTR/ImageServer from the dataset landing page as shown in the image below:\n",
+    "\n",
+    "<nop/> <div style=\"width: 700px;\">![](../../images/EGIS_OPERA_Images/OPERA_EGIS_ArcGIS_1.png)</div>\n",
+    "\n",
+    "Next step is to open ArcGIS Pro and select the `Add Data` tab. \n",
+    "\n",
+    "<nop/> <div style=\"width: 200px;\">![](../../images/EGIS_OPERA_Images/OPERA_EGIS_ArcGIS_2.png)</div>\n",
+    "\n",
+    "Then within the `Add Data` section you have the option of loading the Image Service of the REST endpoint `From Path`. \n",
+    "\n",
+    "<nop/> <div style=\"width: 800px;\">![](../../images/EGIS_OPERA_Images/OPERA_EGIS_ArcGIS_3.png)</div>\n",
+    "\n",
+    "Then entering the Image Service endpoint within the `Path`.\n",
+    "\n",
+    "<nop/> <div style=\"width: 600px;\">![](../../images/EGIS_OPERA_Images/OPERA_EGIS_ArcGIS_4.png)</div>\n",
+    "\n",
+    "Once the data is added to the map, you can start exploring the Image Service.\n",
+    "\n",
+    "<nop/> <div style=\"width: 1000px;\">![](../../images/EGIS_OPERA_Images/OPERA_EGIS_ArcGIS_5.png)</div>\n",
+    "\n",
+    "**The `OPERA_L3_DSWX-HLS_V1_B01_WTR` is best observed with a reduced time scale (e.g. using the time slider). Overview layers will be available to view at a global extent of the collection, but the source raster will only be available when zoomed in.**\n",
+    "\n",
+    "**Please note: If querying via `Select By Attributes`, certain queries may timeout depending on the attribute/variable used due to the amount of records.**\n",
+    "\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## QGIS\n",
+    "\n",
+    "There are current limitations with connecting to the Image Service in QGIS.\n",
+    "\n",
+    "Visit this StoryMap for more details on the limitations of QGIS accessibility: https://gis.earthdata.nasa.gov/portal/apps/storymaps/stories/67b9468490244f6998a19659eed1a1d9"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Programmatic Access\n",
+    "\n",
+    "For programmatic access examples, see `OPERA_EGIS_access_Python.ipynb` in the [PO.DAAC Cookbook](../notebooks/GIS/OPERA_EGIS_access_Python.ipynb)."
+   ]
+  }
+ ],
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+   "display_name": "Python 3 (ipykernel)",
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+   "name": "python3"
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