Read and work with Anti-shipping Activity Messages (ASAM) database files
Anti-shipping Activity Messages (‘ASAM’) include the locations and descriptive accounts of specific hostile acts against ships and mariners. The reports may be useful for recognition, prevention and avoidance of potential hostile activity. Tools are provided to download the official ‘ASAM’ database along with a geojson version of the official polygons defining the ‘ASAM’ global regions and subregions. Data is from https://msi.nga.mil/Piracy
The following functions are implemented:
asam_subregions: Retrieve ASAM subregions polygonsread_asam: Read ASAM database The ASAM database is updated daily by the National Geospatial-Intelligence Agency (NGIA) and this function provides a simple means to download it.
remotes::install_git("https://git.rud.is/hrbrmstr/asam.git")
# or
remotes::install_git("https://git.sr.ht/~hrbrmstr/asam")
# or
remotes::install_gitlab("hrbrmstr/asam")
# or
remotes::install_bitbucket("hrbrmstr/asam")
# or
remotes::install_github("hrbrmstr/asam")NOTE: To use the ‘remotes’ install options you will need to have the {remotes} package installed.
library(asam)
# current version
packageVersion("asam")
## [1] '0.2.0'library(asam)
library(tidyverse)
date()
## [1] "Mon Nov 4 07:57:06 2019"See the subregion map
subregions <- asam_subregions()
subregions
## Simple feature collection with 58 features and 6 fields
## geometry type: POLYGON
## dimension: XY
## bbox: xmin: -180 ymin: -90 xmax: 180 ymax: 90
## epsg (SRID): 4326
## proj4string: +proj=longlat +datum=WGS84 +no_defs
## First 10 features:
## OBJECTID ID SUBREGION REGION Shape_Leng Shape_Area geometry
## 1 1 1 83 8 275.90637 4513.12768 POLYGON ((-180 -26.98819, -...
## 2 2 2 19 1 144.08198 1216.84278 POLYGON ((-180 17.9181, -18...
## 3 3 3 17 1 66.67966 248.73010 POLYGON ((-150 45, -150 52,...
## 4 4 4 18 1 116.55910 692.64299 POLYGON ((-123.4279 50.3571...
## 5 5 5 21 2 123.27130 672.56328 POLYGON ((-116 32.75, -105....
## 6 6 6 28 2 70.84287 180.14091 POLYGON ((-105.4171 28.9852...
## 7 7 7 27 2 25.87120 37.47341 POLYGON ((-86 23.5, -79.600...
## 8 8 8 11 1 107.27366 504.85999 POLYGON ((-116 32.75, -107....
## 9 9 9 26 2 80.53508 219.35296 POLYGON ((-74.25001 32.9353...
## 10 10 10 25 2 89.06587 450.16167 POLYGON ((-64.00001 34.7272...
suppressWarnings(plot(select(subregions, geometry)))
Find all the incidents by pirates this year
asam <- read_asam()
asam
## # A tibble: 7,843 x 9
## reference date latitude longitude navArea subreg hostility victim description
## <chr> <date> <dbl> <dbl> <chr> <chr> <chr> <chr> <chr>
## 1 2019-73 2019-09-30 1.04 104. XI 71 Five Armed ro… Bulk Car… , SINGAPORE STRAITS. DECK CREW ON RO…
## 2 2019-72 2019-09-28 5.33 120. XI 92 Two High-spee… Bulk Car… AROUND 12NM NW OF TAWI-TAWI ISLAND, …
## 3 2019-75 2019-09-23 6.28 3.23 II 57 <NA> <NA> On September 23rd a duty watchman on…
## 4 2019-74 2019-09-23 5.46 119. XI 72 Seven people … two fish… TWO FISHING BOATS SAILED TOWARDS TAM…
## 5 2019-76 2019-09-16 9.42 -13.7 II 51 Four armed ro… Tanker On September 16th four robbers armed…
## 6 2019-71 2019-07-21 2.92 105. XI 71 PIRATES BULK CAR… INDONESIA: On 21 July, seven pirates…
## 7 2019-70 2019-07-21 8.47 -13.5 II 51 ROBBERS CONTAINE… SIERRA LEONE: On 21 July, five robbe…
## 8 2019-68 2019-07-16 1.17 104. XI 71 ROBBERS TUG INDONESIA: On 16 July, robbers board…
## 9 2019-69 2019-07-13 9.59 -79.5 IV 26 PIRATES PLEASURE… PANAMA: On 13 July, a monohull with …
## 10 2019-67 2019-07-13 2.97 4.67 II 57 PIRATES CARGO SH… NIGERIA: On 13 July, pirates boarded…
## # … with 7,833 more rows
filter(asam, grepl("pirate", hostility, ignore.case=TRUE), lubridate::year(date) == lubridate::year(Sys.Date()))
## # A tibble: 31 x 9
## reference date latitude longitude navArea subreg hostility victim description
## <chr> <date> <dbl> <dbl> <chr> <chr> <chr> <chr> <chr>
## 1 2019-71 2019-07-21 2.92 105. XI 71 PIRATES BULK CARR… INDONESIA: On 21 July, seven pirates arm…
## 2 2019-69 2019-07-13 9.59 -79.5 IV 26 PIRATES PLEASURE … PANAMA: On 13 July, a monohull with two …
## 3 2019-67 2019-07-13 2.97 4.67 II 57 PIRATES CARGO SHIP NIGERIA: On 13 July, pirates boarded the…
## 4 2019-65 2019-07-01 12.9 43.2 IX 62 PIRATES MERCHANT … RED SEA: On 1 July, a merchant vessel un…
## 5 2019-57 2019-06-03 4.23 7.1 II 57 PIRATES SPEEDBOATS NIGERIA: On 3 June, five Port Harcourt-b…
## 6 2019-56 2019-05-31 0.0500 -51.0 V 24 PIRATES BULK CARR… BRAZIL: On 31 May, six persons armed wit…
## 7 2019-46 2019-05-12 6.00 1.27 II 57 PIRATES CHEMICAL … TOGO: On 12 May, armed persons boarded a…
## 8 2019-53 2019-05-05 3. 7.83 II 57 PIRATES SEMI-SUB … EQUATORIAL GUINEA: On 5 May, the semi-su…
## 9 2019-52 2019-05-05 3.07 7.98 II 57 PIRATES TUG BOAT EQUATORIAL GUINEA: On 5 May, pirates hij…
## 10 2019-40 2019-04-24 -0.483 48.6 VIII 61 Pirates Multiple … INDIAN OCEAN: On 21 April, fishing vesse…
## # … with 21 more rows| Lang | # Files | (%) | LoC | (%) | Blank lines | (%) | # Lines | (%) |
|---|---|---|---|---|---|---|---|---|
| R | 5 | 0.83 | 26 | 0.6 | 7 | 0.21 | 52 | 0.58 |
| Rmd | 1 | 0.17 | 17 | 0.4 | 26 | 0.79 | 37 | 0.42 |
Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms.