Kothuru
Srikakulam district · official boundary (AWARE, rebuilt)Normal or moderate
Step 1 · Trigger 1Set
Rainfall vs normal−14%768 mm against 887 mm · Normal. Table 3.1 (IMD): normal +19 to −19%, deficient −20 to −59%, large deficient −60 to −99%, no rain −100%. Measured: AP DES gauges via APWRIMS.
Longest dry spell4 wk3.2.1 B: consecutive weeks after the monsoon's due onset with under 50% of the week's normal; usually 4 weeks, 3 on light soils.
SPI route (satellite)+0.31Near normal; would set Trigger 1 on its own route. 3.2.1 C: SPI below −1 is a deficit; below −1.5 sets Trigger 1 without a dry spell. CHIRPS v3 since 1981.
Trigger 1 set by a dry spell. Table 3.11: a dry spell sets Trigger 1. Without one, only large-deficient rainfall (or SPI below −1.5) does.Step 2 · Trigger 2 · 2 of 3 indicatorsNormal or moderate
Remote sensing · VCI Normal68Table 3.4: VCI 60–100 normal, 40–60 moderate, 0–40 severe. NOAA STAR VHP, 4 km, last four weeks. Satellite index over all vegetation; coarser than the manual prefers.
Soil moisture · PASM Moderate67%Usual for the date 96%. This date read Severe in 1 of 12 earlier years. Table 3.6 (2020): PASM 76–100 no drought, 51–75 moderate, 0–50 severe. The State may recalibrate. Modelled: NRSC VIC at 30 cm via APWRIMS, four-week mean.
Hydrology · GWDI n/a—Under 10 years of record for the month, or no series of its own. Table 3.9: GWDI above −0.15 normal, to −0.30 mild, to −0.45 moderate, to −0.60 severe, below extreme. Measured: APWRIMS wells.
Agriculture · area sown n/a—Not published per mandal: the Agriculture department holds it. 3.2.3.1: sown area under 85% of normal is drought; 75% or less is severe.
3.3.1 Step 2: severe if two of three are severe and the third at least moderate; moderate if two are moderate or worse.Step 3 · the State
No field verification is called for unless Trigger 2 is set.