diff --git a/searchPages/searchResearchResults.component.ts b/searchPages/searchResearchResults.component.ts
index 5e4e3c59..f4f03fa7 100644
--- a/searchPages/searchResearchResults.component.ts
+++ b/searchPages/searchResearchResults.component.ts
@@ -160,7 +160,9 @@ export class SearchResearchResultsComponent {
 
       this.searchUtils.validateSize(params['size']);
       this.searchUtils.sortBy = (params['sortBy']) ? params['sortBy'] : '';
-      if (this.searchUtils.sortBy && this.searchUtils.sortBy != "resultdateofacceptance,descending" && this.searchUtils.sortBy != "resultdateofacceptance,ascending") {
+      if (this.searchUtils.sortBy && this.searchUtils.sortBy != "resultdateofacceptance,descending" && this.searchUtils.sortBy != "resultdateofacceptance,ascending"
+        && this.searchUtils.sortBy != "citation_count,descending" && this.searchUtils.sortBy != "popularity,descending"
+        && this.searchUtils.sortBy != "influence,descending" && this.searchUtils.sortBy != "impulse,descending") {
         this.searchUtils.sortBy = "";
       }
       this.selectedFields = [];
diff --git a/searchPages/searchUtils/searchSorting.component.ts b/searchPages/searchUtils/searchSorting.component.ts
index f70ac1cf..7a1e7fe8 100644
--- a/searchPages/searchUtils/searchSorting.component.ts
+++ b/searchPages/searchUtils/searchSorting.component.ts
@@ -23,6 +23,10 @@ export class SearchSortingComponent {
     {value: '', label: 'Relevance'},
     {value: 'resultdateofacceptance,descending', label: 'Date (most recent)'},
     {value: 'resultdateofacceptance,ascending', label: 'Date (least recent)'},
+    {value: 'citation_count,descending', label: 'Citation Count'},
+    {value: 'popularity,descending', label: 'Popularity'},
+    {value: 'influence,descending', label: 'Influence'},
+    {value: 'impulse,descending', label: 'Impulse'}
   ];
   private communityOptions = [
     {value: '', label: 'Title'},