start of mapperr docs

Author: albroome

content/en/docs/mapperr/_index.md

@@ -1,13 +1,14 @@
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 title: MAPPERR Multi-frequency Radar
-linkTitle: MAPPER
-#description: Details about the Peregrine UAS
+linkTitle: MAPPERR
+#description: Details about the MAPPERR system
 menu: {main: {weight: 20, pre: "<i class='fa-solid fa-map'></i>"}}
 weight: 20
 ---
 
 {{% pageinfo %}}
-Landing page for docs about MAPPERR
+Guidelines for building MAPPERR: a towable, coherent, ground-based, ice-penetrating radar
 {{% /pageinfo %}}
 
-Test
+At its core MAPPERR, the Multi-frequency Active-Passive Exploration Radar-Radiometer, is a software-defined radio (SDR)-based ice-peentrating radar that runs [Open Radar Code Architecture (ORCA)](/docs/radar/). Operable as a snowmachine-towed radar, MAPPERR is one of the few coherent ground-based ice-penetrating radars that has sufficient flexibilty and low enough cost to be utilized by a wide swath of field-going glaciologists. These pages focus on outlining suggestions for building your own version of MAPPERR. For more information on the architecture of a multi-frequency joint radar-radiometer, we refer you to the following publications:
+* add list/section on publications>