diff --git a/DESCRIPTION b/DESCRIPTION
index e310313..c22d85c 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,20 +1,23 @@
 Package: datamatch
-Title: Fetch and Match Copernicus Marine Data to Species Observations
+Title: Fetch Copernicus Marine Data and Match It in Space and Time
 Version: 0.0.0.9000
 Authors@R: 
     person("Camille", "Ross", email = "camille.ross@maine.edu", role = c("aut", "cre"),
            comment = c(ORCID = "0000-0002-1428-2294"))
 Description: Downloads environmental data from the Copernicus Marine Service
-    and matches it to species observation data (presence-absence, density,
-    count) in space and time, at the environmental data's own resolution.
-    Variables are requested by familiar names such as 'SST' rather than
-    product-specific codes, and reanalysis or analysis-and-forecast products
-    can be used interchangeably. Also provides spatial and temporal resampling
-    for combining products of different resolution, gap filling for satellite
-    ocean colour, seafloor terrain from NOAA ETOPO, basin-scale climate
-    indices, and plots for inspecting what was downloaded. Available products
-    and variables are listed under the Access Data tab on the Copernicus Marine
-    Service website (<https://marine.copernicus.eu/access-data/>).
+    and joins it to point data in space and time, at the downloaded data's own
+    resolution. The join is a general spatiotemporal nearest-feature match, so
+    either side may be species observations, survey stations, tag positions, or
+    another gridded product. Variables are requested by familiar names such as
+    'SST' rather than product-specific codes; monthly means, whole daily
+    periods, or named dates can be fetched, in parallel and cached; and
+    reanalysis or analysis-and-forecast products can be used interchangeably.
+    Also provides spatial and temporal resampling for combining products of
+    different resolution, gap filling for satellite ocean colour, seafloor
+    terrain from NOAA ETOPO, basin-scale climate indices, and plots for
+    inspecting what was downloaded. Available products and variables are listed
+    under the Access Data tab on the Copernicus Marine Service website
+    (<https://marine.copernicus.eu/access-data/>).
 License: MIT + file LICENSE
 Encoding: UTF-8
 Roxygen: list(markdown = TRUE)
diff --git a/README.Rmd b/README.Rmd
index 0f8399a..b284fdf 100644
--- a/README.Rmd
+++ b/README.Rmd
@@ -19,7 +19,11 @@ knitr::opts_chunk$set(
 [![R-CMD-check](https://github.com/chross22/datamatch/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/chross22/datamatch/actions/workflows/R-CMD-check.yaml)
 <!-- badges: end -->
 
-The goal of datamatch is to pull environmental data from Copernicus Marine Service and match spatially and temporally to species occurrence data.
+datamatch pulls environmental data from the Copernicus Marine Service and joins
+it to point data in space and time. The join is general — species observations,
+survey stations, tag positions, or another gridded product — and the package
+also covers regridding, gap filling, seafloor terrain, and basin-scale climate
+indices.
 
 <details>
 <summary><b>Contents</b></summary>
diff --git a/README.md b/README.md
index 7877926..27d5778 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,11 @@ output: github_document
 [![R-CMD-check](https://github.com/chross22/datamatch/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/chross22/datamatch/actions/workflows/R-CMD-check.yaml)
 <!-- badges: end -->
 
-The goal of datamatch is to pull environmental data from Copernicus Marine Service and match spatially and temporally to species occurrence data.
+datamatch pulls environmental data from the Copernicus Marine Service and joins
+it to point data in space and time. The join is general — species observations,
+survey stations, tag positions, or another gridded product — and the package
+also covers regridding, gap filling, seafloor terrain, and basin-scale climate
+indices.
 
 <details>
 <summary><b>Contents</b></summary>