ex01B1_uv300.hs.mdl: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/usr/share/ncarg/data/bin/ex01B1_uv300.hs.mdl - from package: ncl-common

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/share/ncarg/data/bin/ex01B1_uv300.hs.mdl - from package: libncarg-data

You may install the required package with command apt-get install {package}

Error in other languages:
ex01B1_uv300.hs.mdl: bevel nie gevind nie
ex01B1_uv300.hs.mdl: comandă negăsită
ex01B1_uv300.hs.mdl: comando não encontrado
ex01B1_uv300.hs.mdl: commande introuvable
ex01B1_uv300.hs.mdl: command not found
ex01B1_uv300.hs.mdl: käsku ei ole
ex01B1_uv300.hs.mdl: không tìm thấy lệnh
ex01B1_uv300.hs.mdl: komanda nerasta
ex01B1_uv300.hs.mdl: Kommando nicht gefunden.
ex01B1_uv300.hs.mdl: kommandot finns inte
ex01B1_uv300.hs.mdl: komut yok
ex01B1_uv300.hs.mdl: nie znaleziono polecenia
ex01B1_uv300.hs.mdl: níor aimsíodh an t-ordú
ex01B1_uv300.hs.mdl: no se encontró la orden
ex01B1_uv300.hs.mdl: no s'ha trobat l'ordre
ex01B1_uv300.hs.mdl: opdracht niet gevonden
ex01B1_uv300.hs.mdl: parancs nem található
ex01B1_uv300.hs.mdl: perintah tidak ditemukan
ex01B1_uv300.hs.mdl: príkaz nenájdený
ex01B1_uv300.hs.mdl: příkaz nenalezen
ex01B1_uv300.hs.mdl: команда не найдена
ex01B1_uv300.hs.mdl: командата не е открита
ex01B1_uv300.hs.mdl: 命令找不到
ex01B1_uv300.hs.mdl: コマンドが見つかりません