From 1e65d73a4bb5a188f274ebd59363a3355ad2d682 Mon Sep 17 00:00:00 2001 From: guiattard Date: Mon, 15 Jul 2024 15:45:36 +0200 Subject: [PATCH] fix tutorial for groundwater recharge calculation with EE --- tutorials/groundwater-recharge-estimation/index.ipynb | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/tutorials/groundwater-recharge-estimation/index.ipynb b/tutorials/groundwater-recharge-estimation/index.ipynb index 56706b08b..d0641b02d 100644 --- a/tutorials/groundwater-recharge-estimation/index.ipynb +++ b/tutorials/groundwater-recharge-estimation/index.ipynb @@ -1027,8 +1027,8 @@ }, "outputs": [], "source": [ - "# Combine precipitation and evapotranspiration.\n", - "meteo = pr_m.combine(pet_m)\n", + "# Combine precipitation and evapotranspiration, and sort the collection.\n", + "meteo = pr_m.combine(pet_m).sort(\"system:time_start\")\n", "\n", "# Import meteorological data as an array at the location of interest.\n", "meteo_arr = meteo.getRegion(poi, scale).getInfo()\n", @@ -1212,7 +1212,7 @@ "***Case 2.2: the storage $ST_{m}$ is less than or equal to the water stored at the field capacity.***\n", "\n", "If $ST_{m} \u003c= ST_{FC}$, $APWL_{m}$ is implemented as follows:\n", - "$APWL_{m} = ST_{FC} \\times \\textrm{ln}(ST_{m}/ST_{FC})$, and no percolation occurs.\n", + "$APWL_{m} = - ST_{FC} \\times \\textrm{ln}(ST_{m}/ST_{FC})$, and no percolation occurs.\n", "\n", "#### Initialization\n", "\n", @@ -1381,7 +1381,7 @@ " new_apwl = new_apwl.where(zone1, zone1_apwl)\n", "\n", " # Calculate ST in zone 1.\n", - " zone1_st = prev_st.multiply(\n", + " zone1_st = stfc.multiply(\n", " ee.Image.exp(zone1_apwl.divide(stfc).multiply(-1))\n", " ).rename(\"st\")\n", " # Implement ST in zone 1.\n",