diff --git a/scripts/other/calc_OHC_RMSE.R b/scripts/other/calc_OHC_RMSE.R
new file mode 100644
index 0000000..52c51fd
--- /dev/null
+++ b/scripts/other/calc_OHC_RMSE.R
@@ -0,0 +1,162 @@
+# Script to calculate OHC RMSE for all runs (since we didn't calculate it
+# automatically for most runs)
+# Author: Peter Scully
+# Date: 7/1/24
+
+### Constants and Imports ###
+
+# Importing libraries
+library(hector)
+library(ggplot2)
+theme_set(theme_bw(base_size = 20))
+
+# Setting up file paths
+COMP_DATA_DIR <- file.path(here::here(), "comparison_data")
+SCRIPTS_DIR <- file.path(here::here(), "scripts")
+RESULTS_DIR <- file.path(here::here(), "results")
+
+OHC_PATH <- file.path(COMP_DATA_DIR, "OHC_ensemble_Kuhlbrodt_etal_2022.csv")
+
+INI_FILE <- system.file("input/hector_ssp245.ini", package = "hector")
+PARAMS <- c(BETA(), Q10_RH(), DIFFUSIVITY(), ECS(), AERO_SCALE())
+
+OUTPUT <- file.path(RESULTS_DIR, "OHC_RMSE.txt")
+
+
+source(file.path(SCRIPTS_DIR, "major_functions.R"))
+
+### Getting observational data ###
+obs_data <- get_ohc_data(OHC_PATH, include_unc = T)
+
+### Running Hector ###
+# Default (and initial smoothing) Results [Exp. 1-4]
+default_data <- run_hector(ini_file = INI_FILE, 
+                           params = NULL,
+                           vals = NULL,
+                           yrs = 1750:2014, 
+                           vars = HEAT_FLUX())
+default_data$scenario <- "Hector - Default"
+
+# NMSE 3-Parameter Results [Exp.5-9]
+exp5_9A <- run_hector(ini_file = INI_FILE,
+                      params = PARAMS,
+                      vals = c(0.268, 2.64, 2.2, 3, 1),
+                      yrs = 1750:2014,
+                      vars = HEAT_FLUX())
+exp5_9A$scenario <- "Hector - NMSE"
+
+exp5B <- run_hector(ini_file = INI_FILE,
+                    params = PARAMS,
+                    vals = c(0, 1.5, 2.6, 3, 1),
+                    yrs = 1750:2014,
+                    vars = HEAT_FLUX())
+exp5B$scenario <- "Hector - NMSE \nBig Box"
+
+exp6B <- run_hector(ini_file = INI_FILE,
+                    params = PARAMS,
+                    vals = c(0, 1.58, 2.6, 3, 1),
+                    yrs = 1750:2014,
+                    vars = HEAT_FLUX())
+exp6B$scenario <- "Hector - NMSE, Smoothing (k = 3) \nBig Box"
+
+exp8B <- run_hector(ini_file = INI_FILE,
+                    params = PARAMS,
+                    vals = c(0, 1.95, 2.6, 3, 1),
+                    yrs = 1750:2014,
+                    vars = HEAT_FLUX())
+exp8B$scenario <- "Hector - NMSE, Smoothing (k = 10) \nBig Box"
+
+exp9B <- run_hector(ini_file = INI_FILE,
+                    params = PARAMS,
+                    vals = c(0.028, 1.76, 2.6, 3, 1),
+                    yrs = 1750:2014,
+                    vars = HEAT_FLUX())
+exp9B$scenario <- "Hector - NMSE w/ unc \nBig Box"
+
+
+# Optimizing S, Alpha [Exp. 10-11]
+exp10A <- run_hector(ini_file = INI_FILE,
+                     params = PARAMS,
+                     vals = c(0.268, 1.95, 2.6, 3.97, 1),
+                     yrs = 1750:2014,
+                     vars = HEAT_FLUX())
+exp10A$scenario <- "Hector - NMSE w/ unc \nTuning S"
+
+exp10B <- run_hector(ini_file = INI_FILE,
+                     params = PARAMS,
+                     vals = c(0.006, 1, 2.6, 3.16, 1),
+                     yrs = 1750:2014,
+                     vars = HEAT_FLUX())
+exp10B$scenario <- "Hector - NMSE w/ unc \nBig Box, Tuning S"
+
+exp11A <- run_hector(ini_file = INI_FILE,
+                     params = PARAMS,
+                     vals = c(0.57, 1.76, 2.38, 2.96, 0.492),
+                     yrs = 1750:2014,
+                     vars = HEAT_FLUX())
+exp11A$scenario <- "Hector - NMSE w/ unc \nTuning S, Alpha"
+
+exp11B <- run_hector(ini_file = INI_FILE,
+                     params = PARAMS,
+                     vals = c(0.502, 0.99, 2, 2.88, 0.5),
+                     yrs = 1750:2014,
+                     vars = HEAT_FLUX())
+exp11B$scenario <- "Hector - NMSE w/ unc \nBig Box, Tuning S, Alpha"
+
+# Optimizing for OHC & Further Refinements [Exp. 12-16]
+exp12 <- run_hector(ini_file = INI_FILE,
+                    params = PARAMS,
+                    vals = c(0.65, 1.76, 1.04, 2.33, 0.438),
+                    yrs = 1750:2014,
+                    vars = HEAT_FLUX())
+exp12$scenario <- "Hector - NMSE w/ unc, incl. OHC \nTuning S, Alpha"
+
+exp13 <- run_hector(ini_file = INI_FILE,
+                    params = PARAMS,
+                    vals = c(0.53, 2.31, 1.04, 2.83, 1.405),
+                    yrs = 1750:2014,
+                    vars = HEAT_FLUX())
+exp13$scenario <- "Hector - MVSSE, incl. OHC \nTuning S, Alpha"
+
+exp14A <- run_hector(ini_file = INI_FILE,
+                     params = PARAMS,
+                     vals = c(0.732, 1.76, 1.04, 3, 0.613),
+                     yrs = 1750:2014,
+                     vars = HEAT_FLUX())
+exp14A$scenario <- "Hector - NMSE w/ unc, incl. OHC \nTuning Alpha"
+
+exp14B <- run_hector(ini_file = INI_FILE,
+                     params = PARAMS,
+                     vals = c(0.904, 0.88, 0.806, 3, 0.46),
+                     yrs = 1750:2014,
+                     vars = HEAT_FLUX())
+exp14B$scenario <- "Hector - NMSE w/ unc, incl. OHC \nBig Box, Tuning Alpha"
+
+exp15 <- run_hector(ini_file = INI_FILE,
+                    params = PARAMS,
+                    vals = c(0.57, 2.49, 1.06, 3.14, 1.08),
+                    yrs = 1750:2014,
+                    vars = HEAT_FLUX())
+exp15$scenario <- "Hector - MAE w/ unc, incl. OHC \nTuning S, Alpha"
+
+exp16 <- run_hector(ini_file = INI_FILE,
+                    params = PARAMS,
+                    vals = c(0.59, 1.76, 1.04, 2.17, 0.411),
+                    yrs = 1750:2014,
+                    vars = HEAT_FLUX())
+exp16$scenario <- "Hector - NMAE w/ unc, incl. OHC \nTuning S, Alpha"
+
+# Calculating OHC RMSE
+all_exp <- list(default_data, 
+             exp5_9A, exp5B, exp6B, exp8B, exp9B,  # NMSEs
+             exp10A, exp10B,                       # Add S
+             exp11A, exp11B,                       # Add alpha
+             exp12,                                # Add OHC, Mat Diff
+             exp13,                                # Try MVSSE
+             exp14A, exp14B,                       # Try remove S
+             exp15, exp16)                         # Try MAE/NMAE
+
+# TODO: clean up this output sorry
+sapply(all_exp, get_var_mse_unc, 
+       obs_data = obs_data, var = "OHC", yrs = 1957:2014, mse_fn = mse_unc)
+