diff --git a/pygmt/datasets/load_remote_dataset.py b/pygmt/datasets/load_remote_dataset.py
index 915f31b15bd..014bd2a9baf 100644
--- a/pygmt/datasets/load_remote_dataset.py
+++ b/pygmt/datasets/load_remote_dataset.py
@@ -64,30 +64,6 @@ class GMTRemoteDataset(NamedTuple):
 
 
 datasets = {
-    "earth_relief": GMTRemoteDataset(
-        title="Earth relief",
-        name="elevation",
-        long_name="Earth elevation relative to the geoid",
-        units="meters",
-        extra_attributes={"vertical_datum": "EGM96", "horizontal_datum": "WGS84"},
-        resolutions={
-            "01d": Resolution(["pixel", "gridline"], False),
-            "30m": Resolution(["pixel", "gridline"], False),
-            "20m": Resolution(["pixel", "gridline"], False),
-            "15m": Resolution(["pixel", "gridline"], False),
-            "10m": Resolution(["pixel", "gridline"], False),
-            "06m": Resolution(["pixel", "gridline"], False),
-            "05m": Resolution(["pixel", "gridline"], True),
-            "04m": Resolution(["pixel", "gridline"], True),
-            "03m": Resolution(["pixel", "gridline"], True),
-            "02m": Resolution(["pixel", "gridline"], True),
-            "01m": Resolution(["pixel", "gridline"], True),
-            "30s": Resolution(["pixel", "gridline"], True),
-            "15s": Resolution(["pixel"], True),
-            "03s": Resolution(["gridline"], True),
-            "01s": Resolution(["gridline"], True),
-        },
-    ),
     "earth_age": GMTRemoteDataset(
         title="seafloor age",
         name="seafloor_age",
@@ -95,19 +71,39 @@ class GMTRemoteDataset(NamedTuple):
         units="Myr",
         extra_attributes={"horizontal_datum": "WGS84"},
         resolutions={
-            "01d": Resolution(["pixel", "gridline"], False),
-            "30m": Resolution(["pixel", "gridline"], False),
-            "20m": Resolution(["pixel", "gridline"], False),
-            "15m": Resolution(["pixel", "gridline"], False),
-            "10m": Resolution(["pixel", "gridline"], False),
-            "06m": Resolution(["pixel", "gridline"], False),
-            "05m": Resolution(["pixel", "gridline"], True),
-            "04m": Resolution(["pixel", "gridline"], True),
-            "03m": Resolution(["pixel", "gridline"], True),
-            "02m": Resolution(["pixel", "gridline"], True),
+            "01d": Resolution(["gridline", "pixel"], False),
+            "30m": Resolution(["gridline", "pixel"], False),
+            "20m": Resolution(["gridline", "pixel"], False),
+            "15m": Resolution(["gridline", "pixel"], False),
+            "10m": Resolution(["gridline", "pixel"], False),
+            "06m": Resolution(["gridline", "pixel"], False),
+            "05m": Resolution(["gridline", "pixel"], True),
+            "04m": Resolution(["gridline", "pixel"], True),
+            "03m": Resolution(["gridline", "pixel"], True),
+            "02m": Resolution(["gridline", "pixel"], True),
             "01m": Resolution(["gridline"], True),
         },
     ),
+    "earth_free_air_anomaly": GMTRemoteDataset(
+        title="free air anomaly",
+        name="free_air_anomaly",
+        long_name="IGPP Global Earth Free-Air Anomaly",
+        units="mGal",
+        extra_attributes={"horizontal_datum": "WGS84"},
+        resolutions={
+            "01d": Resolution(["gridline", "pixel"], False),
+            "30m": Resolution(["gridline", "pixel"], False),
+            "20m": Resolution(["gridline", "pixel"], False),
+            "15m": Resolution(["gridline", "pixel"], False),
+            "10m": Resolution(["gridline", "pixel"], False),
+            "06m": Resolution(["gridline", "pixel"], False),
+            "05m": Resolution(["gridline", "pixel"], True),
+            "04m": Resolution(["gridline", "pixel"], True),
+            "03m": Resolution(["gridline", "pixel"], True),
+            "02m": Resolution(["gridline", "pixel"], True),
+            "01m": Resolution(["pixel"], True),
+        },
+    ),
     "earth_geoid": GMTRemoteDataset(
         title="Earth geoid",
         name="earth_geoid",
@@ -115,16 +111,16 @@ class GMTRemoteDataset(NamedTuple):
         units="m",
         extra_attributes={"horizontal_datum": "WGS84"},
         resolutions={
-            "01d": Resolution(["pixel", "gridline"], False),
-            "30m": Resolution(["pixel", "gridline"], False),
-            "20m": Resolution(["pixel", "gridline"], False),
-            "15m": Resolution(["pixel", "gridline"], False),
-            "10m": Resolution(["pixel", "gridline"], False),
-            "06m": Resolution(["pixel", "gridline"], False),
-            "05m": Resolution(["pixel", "gridline"], True),
-            "04m": Resolution(["pixel", "gridline"], True),
-            "03m": Resolution(["pixel", "gridline"], True),
-            "02m": Resolution(["pixel", "gridline"], True),
+            "01d": Resolution(["gridline", "pixel"], False),
+            "30m": Resolution(["gridline", "pixel"], False),
+            "20m": Resolution(["gridline", "pixel"], False),
+            "15m": Resolution(["gridline", "pixel"], False),
+            "10m": Resolution(["gridline", "pixel"], False),
+            "06m": Resolution(["gridline", "pixel"], False),
+            "05m": Resolution(["gridline", "pixel"], True),
+            "04m": Resolution(["gridline", "pixel"], True),
+            "03m": Resolution(["gridline", "pixel"], True),
+            "02m": Resolution(["gridline", "pixel"], True),
             "01m": Resolution(["gridline"], True),
         },
     ),
@@ -135,36 +131,40 @@ class GMTRemoteDataset(NamedTuple):
         units="nT",
         extra_attributes={"horizontal_datum": "WGS84"},
         resolutions={
-            "01d": Resolution(["pixel", "gridline"], False),
-            "30m": Resolution(["pixel", "gridline"], False),
-            "20m": Resolution(["pixel", "gridline"], False),
-            "15m": Resolution(["pixel", "gridline"], False),
-            "10m": Resolution(["pixel", "gridline"], False),
-            "06m": Resolution(["pixel", "gridline"], False),
-            "05m": Resolution(["pixel", "gridline"], True),
-            "04m": Resolution(["pixel", "gridline"], True),
-            "03m": Resolution(["pixel", "gridline"], True),
+            "01d": Resolution(["gridline", "pixel"], False),
+            "30m": Resolution(["gridline", "pixel"], False),
+            "20m": Resolution(["gridline", "pixel"], False),
+            "15m": Resolution(["gridline", "pixel"], False),
+            "10m": Resolution(["gridline", "pixel"], False),
+            "06m": Resolution(["gridline", "pixel"], False),
+            "05m": Resolution(["gridline", "pixel"], True),
+            "04m": Resolution(["gridline", "pixel"], True),
+            "03m": Resolution(["gridline", "pixel"], True),
             "02m": Resolution(["pixel"], True),
         },
     ),
-    "earth_free_air_anomaly": GMTRemoteDataset(
-        title="free air anomaly",
-        name="free_air_anomaly",
-        long_name="IGPP Global Earth Free-Air Anomaly",
-        units="mGal",
-        extra_attributes={"horizontal_datum": "WGS84"},
+    "earth_relief": GMTRemoteDataset(
+        title="Earth relief",
+        name="elevation",
+        long_name="Earth elevation relative to the geoid",
+        units="meters",
+        extra_attributes={"vertical_datum": "EGM96", "horizontal_datum": "WGS84"},
         resolutions={
-            "01d": Resolution(["pixel", "gridline"], False),
-            "30m": Resolution(["pixel", "gridline"], False),
-            "20m": Resolution(["pixel", "gridline"], False),
-            "15m": Resolution(["pixel", "gridline"], False),
-            "10m": Resolution(["pixel", "gridline"], False),
-            "06m": Resolution(["pixel", "gridline"], False),
-            "05m": Resolution(["pixel", "gridline"], True),
-            "04m": Resolution(["pixel", "gridline"], True),
-            "03m": Resolution(["pixel", "gridline"], True),
-            "02m": Resolution(["pixel", "gridline"], True),
-            "01m": Resolution(["pixel"], True),
+            "01d": Resolution(["gridline", "pixel"], False),
+            "30m": Resolution(["gridline", "pixel"], False),
+            "20m": Resolution(["gridline", "pixel"], False),
+            "15m": Resolution(["gridline", "pixel"], False),
+            "10m": Resolution(["gridline", "pixel"], False),
+            "06m": Resolution(["gridline", "pixel"], False),
+            "05m": Resolution(["gridline", "pixel"], True),
+            "04m": Resolution(["gridline", "pixel"], True),
+            "03m": Resolution(["gridline", "pixel"], True),
+            "02m": Resolution(["gridline", "pixel"], True),
+            "01m": Resolution(["gridline", "pixel"], True),
+            "30s": Resolution(["gridline", "pixel"], True),
+            "15s": Resolution(["pixel"], True),
+            "03s": Resolution(["gridline"], True),
+            "01s": Resolution(["gridline"], True),
         },
     ),
     "earth_vgg": GMTRemoteDataset(
@@ -174,16 +174,16 @@ class GMTRemoteDataset(NamedTuple):
         units="Eotvos",
         extra_attributes={"horizontal_datum": "WGS84"},
         resolutions={
-            "01d": Resolution(["pixel", "gridline"], False),
-            "30m": Resolution(["pixel", "gridline"], False),
-            "20m": Resolution(["pixel", "gridline"], False),
-            "15m": Resolution(["pixel", "gridline"], False),
-            "10m": Resolution(["pixel", "gridline"], False),
-            "06m": Resolution(["pixel", "gridline"], False),
-            "05m": Resolution(["pixel", "gridline"], True),
-            "04m": Resolution(["pixel", "gridline"], True),
-            "03m": Resolution(["pixel", "gridline"], True),
-            "02m": Resolution(["pixel", "gridline"], True),
+            "01d": Resolution(["gridline", "pixel"], False),
+            "30m": Resolution(["gridline", "pixel"], False),
+            "20m": Resolution(["gridline", "pixel"], False),
+            "15m": Resolution(["gridline", "pixel"], False),
+            "10m": Resolution(["gridline", "pixel"], False),
+            "06m": Resolution(["gridline", "pixel"], False),
+            "05m": Resolution(["gridline", "pixel"], True),
+            "04m": Resolution(["gridline", "pixel"], True),
+            "03m": Resolution(["gridline", "pixel"], True),
+            "02m": Resolution(["gridline", "pixel"], True),
             "01m": Resolution(["pixel"], True),
         },
     ),