diff --git a/OBSERVATIONS/AVISO.ipynb b/OBSERVATIONS/AVISO.ipynb
index c68b943..33d0b71 100644
--- a/OBSERVATIONS/AVISO.ipynb
+++ b/OBSERVATIONS/AVISO.ipynb
@@ -47,7 +47,7 @@
    "outputs": [],
    "source": [
     "cat = intake.open_catalog('https://raw.githubusercontent.com/eerie-project/intake_catalogues/main/eerie.yaml')\\\n",
-    "                          ['dkrz']['dkrz_eerie_disk']['dkrz_eerie_observations']"
+    "                          ['dkrz']['disk']['observations']"
    ]
   },
   {
diff --git a/OBSERVATIONS/CERES.ipynb b/OBSERVATIONS/CERES.ipynb
index ba51ab8..d2b1cad 100644
--- a/OBSERVATIONS/CERES.ipynb
+++ b/OBSERVATIONS/CERES.ipynb
@@ -47,7 +47,7 @@
    "outputs": [],
    "source": [
     "cat = intake.open_catalog('https://raw.githubusercontent.com/eerie-project/intake_catalogues/main/eerie.yaml')\\\n",
-    "                          ['dkrz']['dkrz_eerie_disk']['dkrz_eerie_observations']"
+    "                          ['dkrz']['disk']['observations']"
    ]
   },
   {
diff --git a/OBSERVATIONS/ERA5.ipynb b/OBSERVATIONS/ERA5.ipynb
index ef6cc6d..109b3e9 100644
--- a/OBSERVATIONS/ERA5.ipynb
+++ b/OBSERVATIONS/ERA5.ipynb
@@ -39,7 +39,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": 3,
    "id": "7483d4ec-12a9-41b3-ad72-97cc9251fdb8",
    "metadata": {
     "tags": []
@@ -47,19 +47,19 @@
    "outputs": [],
    "source": [
     "cat = intake.open_catalog('https://raw.githubusercontent.com/eerie-project/intake_catalogues/main/eerie.yaml')\\\n",
-    "                          ['dkrz']['dkrz_eerie_disk']['dkrz_eerie_observations']"
+    "                          ['dkrz']['disk']['observations']"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": 5,
    "id": "e1f32980-f5b1-42fd-a975-42b432c82298",
    "metadata": {
     "tags": []
    },
    "outputs": [],
    "source": [
-    "era5 = cat['ERA5']#['phc3']"
+    "era5 = cat['ERA5']"
    ]
   },
   {
diff --git a/OBSERVATIONS/GPM.ipynb b/OBSERVATIONS/GPM.ipynb
index 823f949..9f727da 100644
--- a/OBSERVATIONS/GPM.ipynb
+++ b/OBSERVATIONS/GPM.ipynb
@@ -39,7 +39,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 13,
+   "execution_count": 2,
    "id": "86592cc8-5349-4c56-85d8-94c245a3477c",
    "metadata": {
     "tags": []
@@ -47,7 +47,7 @@
    "outputs": [],
    "source": [
     "cat = intake.open_catalog('https://raw.githubusercontent.com/eerie-project/intake_catalogues/main/eerie.yaml')\\\n",
-    "                          ['dkrz']['dkrz_eerie_disk']['dkrz_eerie_observations']"
+    "                          ['dkrz']['disk']['observations']"
    ]
   },
   {
diff --git a/OBSERVATIONS/MSWEP.ipynb b/OBSERVATIONS/MSWEP.ipynb
index 681e196..281c033 100644
--- a/OBSERVATIONS/MSWEP.ipynb
+++ b/OBSERVATIONS/MSWEP.ipynb
@@ -47,7 +47,7 @@
    "outputs": [],
    "source": [
     "cat = intake.open_catalog('https://raw.githubusercontent.com/eerie-project/intake_catalogues/main/eerie.yaml')\\\n",
-    "                          ['dkrz']['dkrz_eerie_disk']['dkrz_eerie_observations']"
+    "                          ['dkrz']['disk']['observations']"
    ]
   },
   {
diff --git a/OBSERVATIONS/OSI-SAF.ipynb b/OBSERVATIONS/OSI-SAF.ipynb
index e8d20f2..f209bf1 100644
--- a/OBSERVATIONS/OSI-SAF.ipynb
+++ b/OBSERVATIONS/OSI-SAF.ipynb
@@ -39,7 +39,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": 3,
    "id": "32535748-7b12-4946-bc80-a4473a97ca26",
    "metadata": {
     "tags": []
@@ -47,12 +47,12 @@
    "outputs": [],
    "source": [
     "cat = intake.open_catalog('https://raw.githubusercontent.com/eerie-project/intake_catalogues/main/eerie.yaml')\\\n",
-    "                          ['dkrz']['dkrz_eerie_disk']['dkrz_eerie_observations']"
+    "                          ['dkrz']['disk']['observations']"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": 4,
    "id": "e1f32980-f5b1-42fd-a975-42b432c82298",
    "metadata": {
     "tags": []
diff --git a/OBSERVATIONS/PHC3.ipynb b/OBSERVATIONS/PHC3.ipynb
index 9eb13ae..c1e11e8 100644
--- a/OBSERVATIONS/PHC3.ipynb
+++ b/OBSERVATIONS/PHC3.ipynb
@@ -47,7 +47,7 @@
    "outputs": [],
    "source": [
     "cat = intake.open_catalog('https://raw.githubusercontent.com/eerie-project/intake_catalogues/main/eerie.yaml')\\\n",
-    "                          ['dkrz']['dkrz_eerie_disk']['dkrz_eerie_observations']"
+    "                          ['dkrz']['disk']['observations']"
    ]
   },
   {
diff --git a/OBSERVATIONS/README.md b/OBSERVATIONS/README.md
new file mode 100644
index 0000000..1023b95
--- /dev/null
+++ b/OBSERVATIONS/README.md
@@ -0,0 +1,13 @@
+# Observations on DKRZ
+
+Notebokks in this folder show simple examples of how to open observations datasets located at DKRZ through [EERIE catalog](https://github.com/eerie-project/intake_catalogues/tree/main).
+
+* AVISO - Satellite derived [Sea Surface Height above Geoid](https://cds.climate.copernicus.eu/cdsapp#!/dataset/satellite-sea-level-global?tab=overview).
+* CERES - Clouds and Earth's Radiant Energy Systems (CERES) Energy Balanced and Filled (EBAF)
+* EN4 - ocean climatology. Data v4.2.2_g10 version from 1950 to 2022
+* ERA5 - atmospheric reanalysis. There are two versions - monthly means of several basic variables (`era5`) and complete set located on DKRZ in GRIB format (`era5-dkrz`).
+* GPM - precipitation. [Integrated Multi-satellitE Retrievals for GPM](https://gpm.nasa.gov/data/imerg). Only years 2020-2021 (untill September) are present.
+* MSWEP - precipitation. [Multi-Source Weighted-Ensemble Precipitation](https://www.gloh2o.org/mswep/).
+* OSI-SAF - [sea ice products.](https://osi-saf.eumetsat.int/products/sea-ice-products) 
+* PHC3 - ocean climatology. [Polar science center Hydrographic Climatology](https://psc.apl.washington.edu/nonwp_projects/PHC/Climatology.html)
+* WOA18 - ocean climatology. [World Ocean Atlas 2018](https://www.ncei.noaa.gov/access/world-ocean-atlas-2018/)
diff --git a/OBSERVATIONS/WOA18.ipynb b/OBSERVATIONS/WOA18.ipynb
index a74caca..f8ffc28 100644
--- a/OBSERVATIONS/WOA18.ipynb
+++ b/OBSERVATIONS/WOA18.ipynb
@@ -47,7 +47,7 @@
    "outputs": [],
    "source": [
     "cat = intake.open_catalog('https://raw.githubusercontent.com/eerie-project/intake_catalogues/main/eerie.yaml')\\\n",
-    "                          ['dkrz']['dkrz_eerie_disk']['dkrz_eerie_observations']"
+    "                          ['dkrz']['disk']['observations']"
    ]
   },
   {