IP Library Granted Patent US 12673884
Granted Patent B2
US 12673884 · App. 18/351,128 · Granted Jul 7, 2026

Acid rain diffusion based on vulnerable zone classifications

Inventors: Manikandan Padmanaban (Chennai, IN); Sarbajit K. Rakshit (Kolkata, IN); Jagabondhu Hazra (Bangalore, IN)
Assignee: International Business Machines Corporation
C02F1/5209C02F1/5236C02F2101/101C02F2101/16C02F2209/07
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Quick Facts
Patent No.
US 12673884
App. No.
18/351,128
Granted
Jul 7, 2026
Kind
B2
Abstract

A computer implemented method for selective diffusion of acid rain. A number of processor units identifies concentrations of acidic gases using a set of satellite images. The number of processor units locates hot spots on a land using the concentrations of acidic gases. The number of processor units classifies the hot spots on the land into vulnerable zones having vulnerable zone classifications. The number of processor units determines cloud seeding materials and alkaline compounds known for the vulnerable zones to selectively diffuse the acidic gases and cause precipitation in the vulnerable zones based on the vulnerable zone classifications for the vulnerable zones.

Claims (59)

1 . A computer implemented method for selective diffusion of acid rain, the computer implemented method comprising:

identifying, by a number of processor units, concentrations of acidic gases using a set of satellite images;

locating, by the number of processor units, hot spots on a land using the concentrations of the acidic gases, wherein the concentrations of the acidic gases are three dimensional column average concentrations of a vertical distribution of the acidic gases throughout an atmosphere over the land;

classifying, by the number of processor units, the hot spots on the land into vulnerable zones having vulnerable zone classifications;

determining, by the number of processor units, cloud seeding materials and alkaline compounds known to selectively diffuse the acidic gases and cause precipitation in the vulnerable zones based on the vulnerable zone classifications for the vulnerable zones;

deploying, by the number of processor units, cloud seeding units with the cloud seeding materials and the alkaline compounds to the vulnerable zones to perform cloud seeding in the vulnerable zones; and

directing, by the number of processor units, the cloud seeding units to perform the cloud seeding with the cloud seeding materials and the alkaline compounds such that the precipitation occurs in the vulnerable zones.

2 . The computer implemented method of claim 1 , wherein the cloud seeding with the cloud seeding materials and the alkaline compounds to selectively diffuse the acidic gases causes the precipitation in the vulnerable zones based on vulnerable zone classifications for the vulnerable zones.

3 . The computer implemented method of claim 1 , wherein classifying, by the number of processor units, the hot spots comprises:

identifying, by the number of processor units, terrain topography and land usage in the hot spots; and

classifying, by the number of processor units, the hot spots into the vulnerable zones having the vulnerable zone classifications using the terrain topography and the land usage identified in the hot spots.

4 . The computer implemented method of claim 1 , wherein determining, by the number of processor units, the cloud seeding materials and the alkaline compounds comprises:

determining a level of nitrogen requirements in the precipitation to increase carbon sequestration; and

determining an amount of the cloud seeding materials and the alkaline compounds needed to neutralize sulfur dioxide and selectively diffuse nitrogen oxides in the acidic gases to reach the level of the nitrogen requirements in the precipitation to increase the carbon sequestration.

5 . The computer implemented method of claim 1 , wherein determining, by the number of processor units, the cloud seeding materials and the alkaline compounds comprises:

determining, by the number of processor units, an expected level of methane emission in the vulnerable zones; and

determining, by the number of processor units, an amount of the cloud seeding materials and the alkaline compounds needed to neutralize nitrogen oxides and selectively diffuse sulfur dioxide based on the expected level of the methane emission such that methane emissions are reduced in the vulnerable zones.

6 . The computer implemented method of claim 1 , wherein determining, by the number of processor units, the cloud seeding materials and the alkaline compounds comprises:

determining, by the number of processor units, a soil composition of the vulnerable zones; and

determining, by the number of processor units, an amount of the cloud seeding materials and the alkaline compounds needed to partially diffuse nitrogen oxides and sulfur dioxide based on the soil composition such that the vulnerable zones neutralize sulfate acid and nitric acid in the precipitation caused using the amount of the cloud seeding materials and the alkaline compounds.

7 . The computer implemented method of claim 1 , wherein determining, by the number of processor units, the cloud seeding materials and the alkaline compounds comprises:

determining, by the number of processor units, an intensity of nitric oxides and sulfur dioxide in the acidic gases; and

determining, by the number of processor units, an amount of the cloud seeding materials and the alkaline compounds needed to neutralize the nitric oxides and the sulfur dioxide in the acidic gases.

8 . The computer implemented method of claim 1 , wherein determining, by the number of processor units, the cloud seeding materials and the alkaline compounds comprises:

performing, by the number of processor units, a volumetric analysis of the acidic gases for each of the vulnerable zones to determine a mixture of the cloud seeding materials and the alkaline compounds to selectively diffuse the acidic gases.

9 . The computer implemented method of claim 1 , wherein the acidic gases are selected from at least one of nitrogen oxides (NOx) and sulfur dioxide (S02), ammonia (NH3) and hydrogen chloride (HCL), or hydrogen fluoride (HF).

10 . A computer system comprising:

a number of processor units, wherein the number of processor units executes program instructions to:

identify concentrations of acidic gases using a set of satellite images;

locate hot spots on a land using the concentrations of the acidic gases, wherein the concentrations of the acidic gases are three dimensional column average concentrations of a vertical distribution of the acidic gases throughout an atmosphere over the land;

classify units, the hot spots on the land into vulnerable zones having vulnerable zone classifications;

determine cloud seeding materials and alkaline compounds known for the vulnerable zones to selectively diffuse the acidic gases and cause precipitation in the vulnerable zones based on the vulnerable zone classifications for the vulnerable zones;

deploy cloud seeding units with the cloud seeding materials and the alkaline compounds to the vulnerable zones to perform cloud seeding in the vulnerable zones; and

direct the cloud seeding units to perform the cloud seeding with the cloud seeding materials and the alkaline compounds such that the precipitation occurs in the vulnerable zones.

11 . The computer system of claim 10 , wherein the cloud seeding with the cloud seeding materials and the alkaline compounds to selectively diffuse the acidic gases causes the precipitation in the vulnerable zones based on vulnerable zone classifications for the vulnerable zones.

12 . The computer system of claim 10 , wherein as part of classifying, by the number of processor units, the hot spots, the number of processor units further executes the program instructions to:

identify terrain topography and land usage in the hot spots; and

classify the hot spots into the vulnerable zones having the vulnerable zone classifications using the terrain topography and the land usage identified in the hot spots.

13 . The computer system of claim 10 , wherein as part of determining the cloud seeding materials and the alkaline compounds, the number of processor units further executes the program instructions to:

determine a level of nitrogen requirements in the precipitation to increase carbon sequestration; and

determine an amount of the cloud seeding materials and the alkaline compounds needed to neutralize sulfur dioxide and selectively diffuse nitrogen oxides in the acidic gases to reach the level of the nitrogen requirements in the precipitation to increase the carbon sequestration.

14 . The computer system of claim 10 , wherein as part of determining the cloud seeding materials and the alkaline compounds, the number of processor units further executes the program instructions to:

determine an expected level of methane emission in the vulnerable zones; and

determine an amount of the cloud seeding materials and the alkaline compounds needed to neutralize nitrogen oxides and selectively diffuse sulfur dioxide based on the expected level of the methane emission such that methane emissions are reduced in the vulnerable zones.

15 . The computer system of claim 10 , wherein as part of determining the cloud seeding materials and the alkaline compounds, the number of processor units further executes the program instructions to:

determine a soil composition of the vulnerable zones; and

determine an amount of the cloud seeding materials and the alkaline compounds needed to partially diffuse nitrogen oxides and sulfur dioxide based on the soil composition such that the vulnerable zones neutralize sulfate acid and nitric acid in the precipitation caused using the amount of the cloud seeding materials and the alkaline compounds.

16 . The computer system of claim 10 , wherein as part of determining the cloud seeding materials and the alkaline compounds, the number of processor units further executes the program instructions to:

determine an intensity of nitric oxides and sulfur dioxide in the acidic gases; and

determine an amount of the cloud seeding materials and the alkaline compounds needed to neutralize the nitric oxides and the sulfur dioxide in the acidic gases.

17 . The computer system of claim 10 , wherein as part of determining the cloud seeding materials and the alkaline compounds, the number of processor units further executes the program instructions to:

perform a volumetric analysis of the acidic gases for each of the vulnerable zones to determine a mixture of the cloud seeding materials and the alkaline compounds to selectively diffuse the acidic gases.

18 . A computer program product for selective diffusion of acid rain, the computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a computer system to cause the computer system to:

identify concentrations of acidic gases using a set of satellite images;

locate hot spots on a land using the concentrations of the acidic gases, wherein the concentrations of the acidic gases are three dimensional column average concentrations of a vertical distribution of the acidic gases throughout an atmosphere over the land;

classify the hot spots on the land into vulnerable zones having vulnerable zone classifications;

determine cloud seeding materials and alkaline compounds known for the vulnerable zones to selectively diffuse the acidic gases and cause precipitation in the vulnerable zones based on the vulnerable zone classifications for the vulnerable zones;

deploy cloud seeding units with the cloud seeding materials and the alkaline compounds to the vulnerable zones to perform cloud seeding in the vulnerable zones; and

direct the cloud seeding units to perform the cloud seeding with the cloud seeding materials and the alkaline compounds such that the precipitation occurs in the vulnerable zones.