Earth 101: Major update of the introductory tutorial

_layouts/contributor_index.html

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-								{{ entity.funding_id_display | default: entity.funding_id }}
+							{{ entity.funding_id_display | default: entity.funding_id }}
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topics/climate/tutorials/atmosphere_101/tutorial.md

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+---
+layout: tutorial_hands_on
+title: Where to Start with Atmosphere Data in Galaxy
+zenodo_link: ''  # Add Zenodo DOI if available
+questions:
+  - What atmospheric data is available in Galaxy?
+  - How can I access and analyze atmospheric datasets for climate and air quality?
+  - What tools are available for monitoring atmospheric composition ?
+  - How are atmospheric data and climate connected?
+objectives:
+  - Understand the role of the atmosphere in the Earth's climate system
+  - Discover key atmospheric datasets (Sentinel-5P, ERA5, etc.)
+  - Learn how to use Galaxy tools for atmospheric data analysis
+  - Explore the strong connections between atmospheric data and climate studies
+  - Access tutorials for visualizing and analyzing atmospheric data
+time_estimation: 1H
+key_points:
+  - Atmosphere as a layer of gas around the Earth, strongly connected to climate
+  - Monitoring atmospheric composition with Sentinel-5P
+  - Accessing ERA5 reanalysis data for climate studies
+  - Volcanic activity monitoring (SO₂, Aerosol Index) and its climate impacts
+  - Using Pangeo for advanced atmospheric data analysis
+tags:
+  - earth-system
+  - atmosphere
+  - climate
+contributions:
+  authorship:
+    - Marie59
+  funding:
+    - gaiadata
+    - gallantries
+    - fairease
+    - eurosciencegateway
+---
+
+# ☁️ Where to Start with Atmosphere Data in Galaxy
+
+> <comment-title>Climate 101 Introduction</comment-title>
+> Before diving into atmospheric data, it's important to understand the basics of climate science.
+> Check out our **[Climate 101 Tutorial]( {% link topics/climate/tutorials/climate-101/tutorial.md %} )** to learn about:
+> - The difference between weather and climate
+> - Essential Climate Variables (ECVs)
+> - Observations, reanalysis, predictions, and projections
+{: .comment}
+
+The **atmosphere** is the layer of gas around the Earth, playing a **critical role in regulating climate, weather, and air quality**. Atmospheric data is **strongly connected to climate studies**, as it helps us understand:
+- How greenhouse gases affect global temperatures
+- The impact of aerosols on climate patterns
+- The relationship between atmospheric composition and extreme weather events
+
+Galaxy provides access to **atmospheric datasets, tools, and tutorials** to help you explore these connections.
+
+
+## 📌 Key Data Sources and Tools
+
+### Copernicus Data Space Ecosystem
+- **Data**: Atmospheric composition data from the **Sentinel-5 Precursor (Sentinel-5P)** mission, the first Copernicus mission focused on monitoring the atmosphere.
+  - **Partnership**: Developed by ESA, the European Commission, the Netherlands Space Office, industry, data users, and scientists.
+  - **Strong Climate Connection**: Sentinel-5P data is essential for studying atmospheric components that drive climate change.
+- **Tool**: [Copernicus Data Space Ecosystem](https://usegalaxy.eu/root?tool_id=interactive_tool_copernicus_notebook)
+- **Tutorials**:
+  - [Sentinel-5P Data Visualisation]( {% link topics/climate/tutorials/sentinel5_data/tutorial.md %} )
+  - [Pangeo Tutorial]( {% link topics/climate/tutorials/pangeo/tutorial.md %} )
+  - [Pangeo Notebook Tutorial]( {% link topics/climate/tutorials/pangeo-notebook/tutorial.md %} )
+
+#### Volcano 🌋 Use Case
+- **Data**: Subset of Sentinel-5P L2 data (e.g., April 1 to May 30, 2021) for the **Antilles region**, focusing on **La Soufrière Saint Vincent** (eruption on April 9, 2021).
+  - **Variables**: Sulfur dioxide (SO₂) and Aerosol Index (AI).
+  - **Purpose**: High-temporal-resolution data for studying volcanic impacts on **air quality, air traffic, and climate**.
+  - **Climate Connection**: Volcanic eruptions can significantly affect climate by injecting aerosols into the stratosphere, which can reflect sunlight and cool the planet.
+  - **Relevance**: Useful for scientists and institutions monitoring **air quality, aviation safety, and climate impacts**.
+
+
+### Climate Data Store
+- **Data**: **ERA5 reanalysis data** providing hourly snapshots of the atmosphere, land surface, and ocean waves from **1959 onwards** (preliminary data available for 1950–1958).
+  - **Features**: Includes uncertainty estimates to highlight the evolution of observing systems.
+  - **Strong Climate Connection**: ERA5 is one of the most comprehensive datasets for studying past and present climate.
+- **Tool**: {% tool [Climate Data Store (Galaxy version 0.2.0)](toolshed.g2.bx.psu.edu/repos/climate/c3s/c3s/0.2.0) %}
+- **Tutorial**: [Panoply Tutorial]( {% link topics/climate/tutorials/panoply/tutorial.md %} ) (for visualizing atmospheric and climate data).
+
+## 🔗 Cross-Domain Connections
+
+The following atmospheric tools and resources **support climate studies** that may overlap with other domains:
+
+### Climate Tools (Relevant to All Domains)
+- **{% tool [Climate Data Store (ERA5)](toolshed.g2.bx.psu.edu/repos/climate/c3s/c3s/0.2.0) %}**
+  *Relevant for: Ocean, Land, Biodiversity*
+  - Hourly atmospheric, land, and ocean wave data for climate studies.
+
+- **[Sentinel-5P Data](https://usegalaxy.eu/root?tool_id=interactive_tool_copernicus_notebook)**
+  *Relevant for: Ocean (marine atmosphere), Land (air quality over land)*
+  - Atmospheric composition data (SO₂, NO₂, O₃, aerosol index).